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Finding Hook & Hastings Records and Opus Documentation

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Records and Opus Documentation

If you hold an opus number, two surviving tools are built around it: the Organ Historical Society’s Forrest C. Mack Hook collection, whose organ-description boxes are arranged by opus from Opus 1 to Opus 2614, and the published Van Pelt volume, The Hook Opus List (1991), which reproduces the firm’s own opus sequence. If you hold only a place name, the Historic New England company record book is your tool, because it lists organs alphabetically by location and records a production number rather than an opus number. If you hold a collection title, Historic New England’s Collections Access catalog is searchable by collection and title, and the OHS Pipe Organ Database, searchable by builder, opus and location, covers the remaining cases. The often-quoted statement that the firm’s official records are lost comes from a 2001 Organ Historical Society essay and is best read as meaning that no single shop archive survived; company material does survive, split among several institutions, each holding a differently bounded fragment.

That fragmentation is what the loss of official records means for certainty. No surviving finding tool is complete, each is keyed on a different identifier, and a retrospective entry or a modern compilation does not carry the weight of a contemporaneous shop document. An instrument missing from one tool has not been shown to be missing from the record, and a negative search is only as strong as the catalog, name form and date it was run against. This page covers what survives, where it is, how each tool is keyed and how to reach it. Whether a given name form or opus date is right for a particular instrument is decided on the identification and dating page reached from the Hook & Hastings builder hub, and what an instrument’s action, chests and later alterations show is covered by the tracker construction, alterations and restoration page.

What happened to the company’s records

The lost-records statement is a 2001 assessment

The statement that ‘the official records and documents of the firm are lost’ comes from the Organ Historical Society’s Organ History introduction to the firm, an essay by James H. Cook carrying a 2001 copyright date, and it should be quoted with that date attached. The same page names what it regards as the substitutes: the firm’s own publications issued between 1857 and 1936, carrying its opus list, sample stoplists and testimonial letters; newspaper and journal reviews of recitals and dedications; correspondence and financial records kept in individual church archives; and the surviving instruments themselves.

Read as a current holdings statement, the 2001 sentence is contradicted in part. Historic New England holds a company record book and catalogs in its Hook & Hastings Company collection, the Peabody Essex Museum’s Phillips Library holds contracts, work orders and business records, and the Organ Historical Society’s own Library and Archives holds a four-box Hook collection that includes the partnership’s articles. The defensible reading is that the main body of shop records did not survive as one archive, not that nothing survives. The essay predates the online cataloging of the Historic New England, Peabody Essex and Weston Historical Society material, which is why it still circulates as a flat negative.

What survives, and in what form

Four bodies of institutional material are documented. Historic New England’s Hook & Hastings Company collection is one document case of 0.42 linear feet. The Peabody Essex Museum’s Hook and Hastings Company Records are one box of 0.25 linear feet. The Organ Historical Society’s Forrest C. Mack Hook collection is six linear feet in four boxes. The Weston Historical Society’s Hook & Hastings Co., Organ Factory Collection is digitized on Digital Commonwealth and, as of 2 September 2026, runs to 86 items.

None of these is the company’s archive transferred intact. The Historic New England case was given in 1955 by Anna Hall, niece of Francis H. Hastings; the Peabody Essex box was purchased in 1999; the Society’s material was assembled by a collector, Forrest C. Mack, and includes papers that originated with Conrad O. Olson, a former Hook & Hastings employee; and the Weston material documents the factory and its people rather than individual instruments. Each fragment answers a different question, and the rest of this page is organized around which question each can answer.

The repositories that hold Hook material

Each holding is small, and each is keyed differently. Extents, dates and arrangement below are as the repositories described them on 2 September 2026.

Historic New England, collection CC007

Historic New England’s Hook & Hastings Company collection, collection code CC007, is 0.42 linear feet in one legal-size document case, dated 1869 to 1969 with the bulk between 1869 and 1931, given in 1955 by Anna Hall, niece of Frank Hastings. The repository states, as of 2 September 2026, that the collection was processed in January 2025 and is available for research, with a finding aid obtainable through its Library and Archives. Its online container list enumerates seven components: photographs of 1869, 1883 and undated; the record book, circa 1885 to 1920; an organ catalog of 1917; a pipe organ catalog of 1927; ephemera of circa 1931 to 1955; correspondence of 1955 to 1962; and a program from the Organ Historical Society’s 1969 national convention. Each component record gives title, date, folder and extent only; the item-level finding aid is held by the Library and Archives rather than published online.

The record book is the reason to go. Historic New England describes it as listing nearly every organ the company built, alphabetically by location, giving location, building or venue, production number, installation date and other specifications for organs built from 1829 to 1920, in a volume begun about 1885 whose creator the repository states is unidentified. ‘Nearly every’ is the repository’s own hedge and is not quantified.

Two consequences follow from that description. The book records a production number, not an opus number, and the repository’s online description publishes no opus index or concordance, so a researcher holding only an opus number cannot use this collection until the published Van Pelt list or another source has supplied a place name. And the book stops at 1920, with nothing later in the collection being a production record, so the firm’s final years of output are undocumented within this one case; that is a gap in a 0.42-linear-foot collection, not evidence that late production is undocumented elsewhere.

How much weight the record book carries for an early instrument

Less than a contemporaneous document would. Historic New England’s record states that the book was begun about 1885 and covers organs built from 1829, so entries for the firm’s first fifty-six years were compiled after the fact. An 1830s or 1860s entry is therefore a later reconstruction whose date, size or specification carries lower evidential weight than a shop paper of the time. That is an inference from the repository’s own stated dates rather than a statement Historic New England makes; the compilers’ sources for the pre-1885 entries are unknown, they may have worked from shop papers since lost, and no error rate has been measured. Treat an early entry as a lead to be checked against the published list and any parish record, not as the settled answer.

The Organ Historical Society Library and Archives

The Organ Historical Society’s Library and Archives holds the Forrest C. Mack Hook collection: six linear feet in four boxes of E. & G. G. Hook, E. & G. G. Hook & Hastings and Hook & Hastings material spanning 1827 to 1935, as the Society’s own catalog record describes it through ArchiveGrid. Box 1 is sorted by category and is cataloged as containing ‘Articles of Partnership and Co-partnership’ with land records, directory listings, factory descriptions, letterhead, manufacturers’ catalogs, news clippings, photographs and slides. Boxes 2 to 4 hold organ descriptions arranged by opus number: Box 2 from Opus 1 to Opus 857, Box 3 from Opus 858 to Opus 2314, and Box 4 from Opus 2315 to Opus 2614.

The catalog also pairs those numbers with years; the pairings are the cataloger’s and belong to the disputed chronology rather than standing outside it, so they are not repeated here. Because the collection is a collector’s assembly rather than a transferred company archive, the record does not establish the provenance of any individual document within it.

The Society’s Hook holdings are also cataloged at instrument level. An ArchiveGrid search for ‘Hook & Hastings’ on 2 September 2026 returned 28 results, at least twelve of them held by the Society, including per-instrument files such as Opus 617 (Philadelphia), Opus 869 (Cincinnati Music Hall), Opus 1573 (Portland, Maine) and Opus 2226 (Tenafly, New Jersey), whose contents are stop-lists, photocopied period articles, photographs and correspondence rather than factory records; notes on 138 organs finished between 1881 and 1930 by Erasme Lahaise, a Hook & Hastings employee; and Louis Luberoff’s 1929 business survey of the American pipe organ industry. Historic New England’s own note on related material independently lists a ‘Hook & Hastings Collection, 1827-1935’ at the Society’s Library and Archives in Villanova. Twelve is what one name-form query surfaced, not a census of the Society’s Hook holdings.

Two cautions apply to searching the Society’s catalog yourself. As of 2 September 2026 its ArchivesSpace finding-aid interface at organhistoricalsociety.as.atlas-sys.com answered a browser search with a Cloudflare security-verification page rather than results, a barrier observed repeatedly rather than once; the holdings described above are documented through ArchiveGrid and the Historic New England note, not through that interface. And the Society runs two separate search surfaces, ArchivesSpace for Special Collections and a SirsiDynix catalog for books and periodicals, so a search of one is not a search of the other. A 2018 Diapason feature on the Archives’ move to Villanova listed the builders whose business records the Society holds without naming Hook; that list was a journalist’s, was never presented as exhaustive, and is not evidence of absence.

Peabody Essex Museum and the Weston factory collection

The Phillips Library of the Peabody Essex Museum holds the Hook and Hastings Company Records, MSS 346: 0.25 linear feet in one box, 1845 to 1899 and undated, comprising eight folders of letters and contracts from 1893 to 1899 concerning organs in New Jersey, New York, Pennsylvania and Massachusetts, 42 work orders from 1875, miscellaneous business records of 1845 to 1881, and factory planning documents from 1899. As of 2 September 2026 the finding aid describes the collection as open for research use and shelved in the Phillips Library stacks at Rowley, Massachusetts; it is not digitized. The correspondence is skewed toward customer complaints about performance and payment disputes, so it is not a representative sample of the firm’s business.

The Weston Historical Society’s Hook & Hastings Co., Organ Factory Collection is the one body of Hook material freely viewable online: as of 2 September 2026, 86 items dated 1875 to 1932 on Digital Commonwealth, 63 of them photographs and 78 under a Creative Commons license, documenting the factory at Kendal Green in Weston, its interiors, employees, advertising and concert programs. It documents the factory and its people, not the organs, and cannot answer an opus-level question.

Where Hook material is not held, or is held in another form

Several catalogs a researcher would reasonably try hold trade ephemera, church records or a copy of the published list rather than firm records. The observations below come from each institution’s own catalog as searched on 2 September 2026 under one name form, and each is a dated result rather than proof that the institution holds nothing further.

Harvard’s archival catalog returns three Hook & Hastings items and no Hook collection: a file on the E. & G.G. Hook & Hastings organ manufactory within the Barlow and Bancroft insurance maps at Baker Library, which is a fire-insurance survey of the premises rather than company records, and, within the First Church and Parish in Dedham records at the Divinity School Library, a 1913 organ specification from the Hook & Hastings Company and a 1965 report by the Frazee Organ Company on repair of the organ.

The American Antiquarian Society holds an 1871 description of the grand organ exhibited at the International Exhibition by E. & G.G. Hook & Hastings, an undated stop-list advertisement of about 1860 to 1900, and the Van Pelt volume; trade advertisements state what the firm claimed for itself and are not independent evidence of any instrument. Boston Public Library returns one record, the Van Pelt volume, and no manuscript, business record or photograph collection.

The Organ Library run by the Boston Chapter of the American Guild of Organists at Boston University describes its roughly 50,000 items as organ music and related literature, names archives of concert organists as its special collections, and names no organbuilder archive; its page was last updated in April 2021, and it summarizes rather than enumerates its holdings, so the absence of a named Hook collection there is a weak observation. ArchiveGrid’s 28 results also reach the Waltham Public Library, Central Michigan University’s Clarke Historical Library, Martha’s Vineyard Museum and Brooklyn Historical Society, the last three holding church and customer records that mention the firm rather than firm records. Church and customer files of that kind are the class of source the 2001 essay itself pointed to for an individual instrument’s correspondence and financial records.

The published opus list

‘The opus list’ without qualification is ambiguous. The firm published its own lists as sales literature over decades, and a 1991 volume reproduces those lists and extends them.

The firm’s own lists, and the 1991 Van Pelt volume

The firm issued cumulative opus lists as sales literature. The Organ Historical Society states that the firm’s own publications between 1857 and 1936 carried ‘their opus list, sample stoplists, and testimonial letters’, refers to an 1895 opus list that ‘documented their chronological instrument production’, and reproduces the cover of a 1927 centennial sales brochure. The Society does not enumerate the editions, and neither the 1895 list nor the 1927 brochure is a tool you can consult without first locating a copy.

The published Hook opus list is The Hook Opus List, compiled and edited by William T. Van Pelt and published by the Organ Historical Society in 1991: 333 pages, hardbound, ISBN 0-913499-07-2. Its cataloging title, ‘The Hook Opus List, 1829-1916, in Facsimile: with a Compiled List of Organs 1916-1935’, states its structure. The portion to 1916 reproduces the firm’s own published lists in facsimile, and the 1916 to 1935 portion is a modern compilation; a facsimile of the firm’s own register is the firm’s statement, while the later compilation is the editor’s, and the two do not carry equal weight.

The OHS catalog describes the volume as cataloging approximately 2,614 organs built between 1827 and 1935 by E. & G. G. Hook, E. & G. G. Hook and Hastings, and Hook and Hastings, with illustrations, facsimiles of promotional publications and two essays. The 1827 in the catalog description and the 1829 in the book’s title are two published spans, not one; 2,614 is the widely repeated published total rather than an independently verified count. The Society’s own catalog record for the Mack Hook collection cites this volume as a reference and arranges its boxes on the same opus sequence to the same terminal number, which makes the archival and published tools mutually usable but not independent of each other.

Copies you can consult

You do not need to buy the volume or book an archive appointment to read a complete opus entry. As of 2 September 2026 the Boston Public Library catalog shows one copy of the 1991 volume available, and the American Antiquarian Society holds a copy on open stacks at G467 O68 H781 H991, also shown available. The Antiquarian Society is a research library with its own admission requirements, and neither library’s circulation terms are stated in its catalog record, so holding a copy is not the same as lending it. The OHS catalog listed the book in stock at $37.95 on the same date; stock and price are retail statuses observed on that date only.

Databases and their boundaries

The database’s own published statements and the behavior of its interface below are as observed on 2 September 2026; a public database changes faster than an archive, so check the live site before citing either.

What the OHS Pipe Organ Database is, and what it says about itself

The OHS Pipe Organ Database is a catalog, not a builder record. The Organ Historical Society describes it as ‘a digital catalog of all pipe organs either built or installed in North America’, excluding reed organs and electronic instruments, established as a relational database in 2004 with a core imported from the former OHS PC Database of around 11,225 instruments and about 7,200 builders. Additions and updates may be submitted by any site visitor through online forms and are, the Society states, reviewed and verified by the OHS Database Committee before acceptance. The Society also states that ‘the database will never be completed, but will always be in a state of flux’. Committee review is a verification step, not a statement about the accuracy of any given record, and ‘all pipe organs’ is a statement of scope rather than of achieved coverage.

The Society’s parent-site description page for the database, last modified 30 October 2018, gives the scope and founding year and, as of 2 September 2026, sets out on that page no instrument count, contributor policy or verification procedure; the committee-review statement appears on the database’s own about page. Record titles combine a builder name form, an opus number and a year, in forms such as ‘E. & G.G. Hook & Hastings – Opus 691, 1873’ and ‘Hook & Hastings – Opus 1570, 1893’, which is why the database can be searched by builder, opus or location; the name form on a record is the database’s label, and what it does and does not establish about an instrument’s era is a question for the identification and dating page.

The site requires JavaScript, so it works in an ordinary browser but returns nothing to a simple fetch, and its record address patterns have changed, so an older link may fail without meaning the record has gone. An unaffiliated mirror of the same data at altpod.pipe-organ.wiki, created in December 2024, describes itself as a development version not affiliated with the Society; citing it is citing a mirror rather than the source, and it may disappear without notice.

Choosing a finding tool by the identifier you hold

Match the tool to the identifier

Start from what you hold, because the surviving tools are organized on incompatible principles. An opus number opens the Society’s Mack Hook collection, whose Boxes 2 to 4 run by opus, and the published Van Pelt list, which reproduces the opus sequence; it also opens the Pipe Organ Database, whose record titles carry the opus, and the Boston Organ Club Newsletter, whose per-instrument entries are identified by opus number, size, location and rebuild attribution. A location opens the Historic New England record book, which is alphabetical by place, the Pipe Organ Database, and the published list, which records a location against each number. A collection title opens Historic New England’s Collections Access catalog, which is searchable by collection and title, and ArchiveGrid, which reached six repositories under one query.

A builder name alone is useful mainly in the Pipe Organ Database and the library catalogs, and there it must be tried under more than one firm style, since the database titles instruments under different forms such as ‘E. & G.G. Hook & Hastings’ and ‘Hook & Hastings’ and a library search under one form returns only that form’s records.

The tools also convert one identifier into another, in one direction more easily than the other. The published list turns an opus number into a location, which then unlocks the location-ordered record book. The record book turns a place name into a production number and an installation date; whether that production number corresponds to a particular opus entry in the published list is not something the repository’s online description settles, because it publishes no concordance between the two. The Boston Organ Club Newsletter, written and produced by Edgar A. Boadway, Jr. from 1965 to 1995 and digitized as PDFs by the Worcester Chapter of the American Guild of Organists, is a contemporaneous observer’s record rather than a builder-primary source, and its brief entries can disagree with other publications on dates, so it corroborates rather than settles.

What a negative result means

Absence from one tool is not absence from the record

A Hook instrument missing from any one database, catalog or opus list has not been shown to be nonexistent or lost, because each surviving finding tool is bounded in a different way. The firm’s shop archive did not survive as a single body; the Historic New England record book was begun about 1885, records only to 1920 and is arranged by location; the published list is a facsimile of the firm’s own sales publications to 1916 supplemented by a compiled list; and the Pipe Organ Database is a visitor-contributed catalog its operator says will never be completed. The rule cuts one way only: it does not license asserting that an instrument existed without evidence.

The general method for documenting a negative finding, and the general doctrine on what an absent database record proves, belong to this site’s archives and evidence pages rather than to this one; what is stated here is the Hook-specific form of the rule.

A blocked interface is not an empty catalog

A search that returns nothing because the interface would not answer establishes nothing about holdings. As of 2 September 2026 the Organ Historical Society’s ArchivesSpace interface returned a security-verification page to a browser and HTTP 403 to automated requests, while individual collection pages from it remained indexed by public search engines; the Pipe Organ Database returned only a JavaScript notice to a plain fetch and HTTP 410 for an older builder-filtered address. Each is a boundary on one route of access on one date, and each leaves a person in a browser, or a written request to the archivist, as the route that actually tests the holdings.

The same discipline applies to a catalog searched under one name form on one date: Boston Public Library’s single Hook & Hastings record and Harvard’s three are results for one query, and on 2 September 2026 a public web search located no Hook collection in the Society’s catalog while a search of ArchiveGrid the same day found one.

Relocation defeats location-keyed searching

An instrument’s present location may bear no relation to the location recorded against its opus number, because Hook instruments are documented moving repeatedly. A database record on a third-party front end to the Pipe Organ Database, for E. & G. G. Hook Opus 582, dated 1871 in that record, with notes credited to a practitioner’s 1980 refurbishment, places the instrument first at the First Unitarian Church, West Newton, Massachusetts, then at the Baptist church at Suncook, New Hampshire from about 1916, and then at Goshen, New Hampshire from 1944.

Holy Cross Polish National Catholic Church in Syracuse states on a 2009 page that its Hook and Hastings Opus 1884 of 1900 was built for Holy Faith Protestant Episcopal Church in Santa Fe, was then ‘moved to an unknown location’, then went to a church in central New York, then to Syracuse in the late 1930s and to its present building in the mid-1990s; that unrecorded stage is exactly the gap that defeats a location search of the published list.

An 1896 Hook and Hastings organ now at St. Mary’s Church, Rochester was bought through the Organ Clearing House in 1968 and kept in a private home in Sandisfield, Massachusetts until the Eastman School of Music received it in 2006, and Eastman’s account gives no opus number and no original location; a well-preserved instrument can reach an institution with its opus identity detached. Searching by present location therefore finds only instruments that never moved, and a location miss is a miss against the recorded location, not against the instrument.

Arranging access

Addresses, hours, appointment rules and fees below are as each repository published them on 2 September 2026. They are the most changeable facts on this page; confirm them with the repository before traveling or relying on a fee.

Organ Historical Society Library and Archives

The Society’s Library and Archives is at 330 North Spring Mill Road, Villanova, Pennsylvania 19085-1737, at Stoneleigh, with printed material on the second floor, Special Collections in climate-controlled rooms on the third floor, and unprocessed archival material at a storage facility in Warminster, Pennsylvania. Hours are by appointment only, made by contacting the OHS archivist at archives@organhistoricalsociety.org or (484) 488-PIPE (7473). Processed Special Collections material may be consulted by appointment at Stoneleigh or supplied as scans by interlibrary loan or directly from the archivist; unprocessed collections have restricted access, ‘restricted’ is not defined, and processing priorities follow user interest, programming demand and staff availability.

The catalog record for the Mack Hook collection states that the material must be viewed at the American Organ Archives, that uncataloged and archival materials are viewed by appointment with the Archivist, and that the Archives’ permission is required to cite, quote and reproduce; no fee schedule, turnaround or application route is published for that permission.

The reading-room rules, in a document versioned ‘OHSLA Guidelines for Use (2020-09)’, admit readers by prior appointment with the Archivist, exclude pens and bags of any kind, permit pencils, loose papers, notebooks and laptops, allow only hand-held cameras with flash disabled and no tripod for reference, research or lecture use, require the guest book to be signed on every visit, and warn that many archival and manuscript collections are stored offsite and need prior arrangement to view; the document sets no notice period, and a newer version may govern in practice.

The Scan Request Policy, which carries no date, provides scans free of charge up to ten single-sided pages, then charges members $0.50 per page to 100 pages and $1.00 beyond, and non-members $1.00 per page to 100 pages and $2.00 beyond, asks for 7 to 10 business days, will not scan overly fragile or extraordinarily sized material, and sends scans on completion of payment; it states no file format, resolution or publication-permission terms.

Older citations may send you to the wrong place. A Diapason news item records a period when the American Organ Archives had its printed materials in a reading room at an academic institution in Princeton, New Jersey and its manuscripts in storage in Enfield, New Hampshire, while it sought a single home; the Society’s current page places the Library and Archives at Villanova, so a citation giving Princeton or Enfield describes a location that no longer applies.

Historic New England

Historic New England’s Library and Archives reading room at 85 Merrimac Street, Boston, Massachusetts 02114 is open by appointment Tuesday to Thursday, 9:30 a.m. to 4:30 p.m., booked by email or by telephone at (617) 994-5909, and the collection is non-lending. Some archival material is housed instead at the Haverhill Center for Preservation and Collections in Haverhill, Massachusetts, where separate appointments may be required and which is fully accessible while the Boston reading room is not. The repository’s page does not say which collections are at which site, so establish with staff which site holds the Hook & Hastings Company collection before booking.

Staff may conduct free collections research on a requester’s behalf for up to thirty minutes, subject to capacity; beyond that a researcher visits in person or commissions fee-based research, with fees determined by the time and complexity required, no guarantee of results, and no fee schedule published. The online Collections Access catalog covers more than 125,000 objects and 1.5 million archival materials by the repository’s own count, but Historic New England directs anyone seeking comprehensive archival research to visit the Boston Library and Archives in person and states that records are under continuing staff review, so the online description of CC007 should be treated as partial and changeable.

Peabody Essex Museum, Phillips Library

The Hook and Hastings Company Records, MSS 346, are described as open for research use and shelved in the Phillips Library stacks at Rowley, Massachusetts. The collection is not digitized, so consulting it means a visit to Rowley, and the finding aid shows no revision date, so hours and any appointment requirement should be confirmed with the Phillips Library before traveling.

Record what you searched

Whatever a search returns, record the catalog, the name form and the date, because a dated result under one name form is exactly what a negative finding establishes and no more. The instrument itself is a separate body of evidence: what its action, chests and later alterations show is the subject of the tracker construction, alterations and restoration page, and how a name form or an opus date is weighed is the subject of the identification and dating page.

Frequently Asked Questions

Not as a single archive, but in part. The sentence that ‘the official records and documents of the firm are lost’ comes from a 2001 Organ Historical Society essay by James H. Cook and is best read as meaning that the main body of shop records did not survive as one archive. Company material is held in several institutions: Historic New England’s Hook & Hastings Company collection, with a company record book and catalogs; the Peabody Essex Museum’s Phillips Library, with contracts, work orders and business records; and the Organ Historical Society’s Library and Archives, whose Forrest C. Mack Hook collection includes the partnership articles and opus-arranged organ descriptions. Each is a small or collector-assembled fragment rather than the firm’s records transferred whole.

Historic New England lists seven components in the collection’s single document case. They are photographs of 1869, 1883 and undated; a company record book of circa 1885 to 1920; organ catalogs of 1917 and 1927; ephemera of circa 1931 to 1955; correspondence of 1955 to 1962; and a 1969 Organ Historical Society convention program. The record book lists nearly every organ the company built, in the repository’s words, alphabetically by location, with location, venue, production number, installation date and specifications for organs of 1829 to 1920; it records a production number rather than an opus number, and the collection holds no production records after 1920. The item-level finding aid is held by the Library and Archives rather than published online, so the online description does not show what lies below those seven file titles.

Yes, at the Organ Historical Society Library and Archives, and not at Historic New England. The Society’s Forrest C. Mack Hook collection arranges its organ descriptions by opus number across three boxes, from Opus 1 to Opus 2614, and its per-instrument files are cataloged by opus and location; those files hold stop-lists, photocopied period articles, photographs and correspondence, not factory records. The Historic New England company record book is arranged alphabetically by location and records a production number, and the repository publishes no opus index or concordance, so an opus number alone will not find an entry there without a location from the published Van Pelt list or another source.

At the Boston Public Library or the American Antiquarian Society, on the availability each catalog showed on 2 September 2026. The Boston Public Library holds one copy of The Hook Opus List (Van Pelt, 1991), shown available, and the American Antiquarian Society holds a copy on open stacks at G467 O68 H781 H991, also shown available; the Antiquarian Society is a research library with its own admission requirements, and neither catalog states its circulation terms. The OHS catalog listed the volume in stock at $37.95 on the same date. Availability, stock and price were observed on that date and change.

No. The database is a visitor-contributed catalog reviewed by the OHS Database Committee, and the Society itself states that it will never be completed and will always be in flux, so absence from it is absence from one bounded tool, not from the record. Every surviving Hook finding tool is bounded differently: the record book at Historic New England is retrospective before 1885, stops at 1920 and is keyed by location; the published list is part facsimile and part compilation; and the Society’s archival files are a collector’s assembly. Retrieval failures, such as the database returning only a JavaScript notice to an automated request, are dated boundaries of one access route, not statements that a record is absent. Check the other tools under each firm style before concluding anything.

By appointment at each repository, on the terms published on 2 September 2026. The Organ Historical Society Library and Archives at Villanova, Pennsylvania opens by appointment only, arranged through the OHS archivist at archives@organhistoricalsociety.org or (484) 488-PIPE (7473); processed material can be consulted at Stoneleigh or supplied as scans, unprocessed collections are restricted, and the Society’s permission is required to cite, quote or reproduce material from its Hook collection. Historic New England’s Boston reading room at 85 Merrimac Street opens by appointment Tuesday to Thursday, 9:30 a.m. to 4:30 p.m., booked by email or at (617) 994-5909, while some material is housed at its Haverhill Center for Preservation and Collections under separate appointment; which site holds the Hook & Hastings Company collection is not stated by the repository, so ask before booking. Locations, hours and appointment rules change and should be confirmed with each repository before traveling.