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Finding Factory Records
The surviving factory records of the Skinner Organ Company and the Aeolian-Skinner Organ Company are held by the Organ Historical Society Library and Archives in Villanova, Pennsylvania, in two separately described collections: the contract files, cataloged as the Aeolian-Skinner Organ Company Collection, OHS-MS-52, and the engineering department stop lists and specifications, which the OHS describes as a separate collection. Both are described as running from 1902 to 1972 and as arranged by opus number, as of September 1, 2026. Before you write to anyone, the free online layer is worth an hour: the archived opus lists on the Aeolian-Skinner Archives website and their per-opus specification pages, which show each organ as it left the factory rather than as it stands today.
This page covers where those records are, how the OHS says a reader gets to them, what the online layer does and does not show, and how to read the OHS Pipe Organ Database without mistaking its record counts for facts about instruments. What a company name or opus number means is explained at Skinner and Aeolian-Skinner Identity, Company Eras, and Opus Numbers, and what the records can and cannot settle about an altered instrument at Documenting Skinner Originality When the Console or Mechanism Has Changed.
The two company collections
One institution holds both, but they are two catalog entries, and a request that names only one of them reaches only one of them.
The contract files
The contract files are the Aeolian-Skinner Organ Company Collection, Collection Identifier OHS-MS-52, which the OHS describes as contract files and associated documents pertaining to the operation and manufacture of pipe organs, created, collected and maintained by the Skinner Organ Company and the Aeolian-Skinner Organ Company from 1902 to 1972, and arranged into four series. The OHS catalog entry, as indexed on September 2, 2026, shows components titled Series I. Skinner Organ Company Contract Files, 1902-1932 and Series II. Aeolian-Skinner Organ Company Contract Files, 1932-1972, and beneath them item-level entries carrying opus numbers, such as Opus No. 664, University of Michigan, Ann Arbor, Michigan, 1928.
Those series dates match the corporate eras, but they do not establish that either series is complete, and a collection title that names only Aeolian-Skinner covers documents from both firms, so the document itself, not the title, tells you which company created it. The catalog entry also carries a note that the collection was processed in July 2023 on an arrangement the OHS had established earlier; it does not say whether every part of the collection is open for consultation.
The engineering stop lists and specifications
The engineering department stop lists and specifications are a second, separately described OHS collection, containing stop lists and specifications created by the Skinner Organ Company and the Aeolian-Skinner Organ Company from 1902 to 1972, which the OHS describes as arranged chronologically by opus number and in good physical condition, as of September 1, 2026. The catalog description does not give its collection identifier, extent or any restrictions, so confirm the exact citation string with the archivist, and arrangement by opus number does not guarantee that every opus is represented.
What the distinction means for a request
A contract file and an engineering stop list are two different record types held in two separately described collections, so the Aeolian-Skinner Organ Company Collection and the engineering department stop lists and specifications must each be asked for by name. An owner who wants the original specification is asking for the engineering collection; an owner who wants the contract and its associated documents is asking for OHS-MS-52. Because the contract-file collection is titled for Aeolian-Skinner alone while its scope covers both corporate eras, a request phrased only around the Skinner Organ Company may not be recognized by title; quote the collection name and identifier as well as the opus number.
Making a records request
Appointment and published guidelines
The OHS Library and Archives is at Stoneleigh, 330 North Spring Mill Road, Villanova, Pennsylvania 19085-1737, and its hours are by appointment only, arranged through the OHS archivist at archives@organhistoricalsociety.org or by telephone at (484) 488-PIPE (7473), as given on the OHS About the Archives page on September 2, 2026.
The OHS states that processed Special Collections material may be consulted by appointment at Stoneleigh or requested through interlibrary loan, that access to unprocessed Special Collections is restricted, and that unprocessed material is stored at a separate facility in Warminster, Pennsylvania. Which parts of the Skinner Organ Company and Aeolian-Skinner holdings fall on which side of that line is not stated in the published descriptions, as of September 1, 2026. The OHS Library and Archives Guidelines for Use, as published on September 1, 2026, require a prior appointment with the archivist and offer access free of charge to readers whose projects relate to the collections; the document is undated, and reading-room rules of this kind are revisable without notice.
Naming the collection and the opus number
The opus number is the key that unlocks both collections, because each is arranged or described by opus number and the contract-file finding aid is described down to individual items with opus-numbered titles. Item-level description does not guarantee that a file survives for every opus or that any given file is open, so treat the opus number as the search term, not as a promise of a result. If the instrument’s opus number is uncertain, or two numbers are in play, settle that first at Skinner and Aeolian-Skinner Identity, Company Eras, and Opus Numbers; this page does not adjudicate it.
In practice the request names three things: the collection, OHS-MS-52 for the contract file or the engineering department stop lists and specifications for the original specification; the opus number; and the location recorded against that number, which is how the item-level entries are titled.
What the guidelines say about copying and citation
The Guidelines for Use permit hand-held still photography with the flash disabled, for reference, research or lecture use only; publication or other commercial use must be cleared with the archivist, the burden of clearing copyright rests with the reader, and the OHS Library and Archives must be cited. Reader-taken photographs are therefore not a route to publication-quality reproduction rights, and reproduction terms specific to the two company collections are not established.
What the published pages do not say is whether the archivist will search a file in answer to a letter or email about one instrument, on what terms, or how quickly. As of September 2, 2026, the published OHS pages stopped at the appointment route and the reading-room rules; nothing on this page should be read as a promise about a remote inquiry.
What is already published online
Three free resources sit outside the reading room, and each has a scope worth knowing before you cite it.
The archived opus lists
The Aeolian-Skinner Archives website is a legacy site that the Organ Historical Society hosts as a frozen archive, alongside the Estey Organ Virtual Museum and the Twin Cities Organ List, on an archive subdomain of the Pipe Organ Database; as of September 2, 2026, its old address under the OHS domain redirected there. It offers four opus lists, titled Skinner, Aeolian-Skinner, Ernest M. Skinner & Son, and Bassett-Skinner, each entry giving opus number, location, city, state, contract year and number of manuals.
The lists are the work of their compilers, published with the stated permission of the OHS and with the support of Allen Kinzey and Sand Lawn, compilers of the printed opus list; the OHS hosts the pages but did not author them, and agreement between the web list and the printed list is not independent corroboration, because both derive from the same compilation. The pages carry no last-updated date, and the latest visible entries on the site’s own updates page were dated October 2012 as of August 31, 2026, which supports, without proving, reading the site as an unmaintained snapshot rather than a maintained register. An entry marked NB means Not Built, and NR means the compilers found No Record for that number; an NR mark does not prove that no instrument was built.
Per-opus specification pages
Each opus number on the archived lists links to a specification page at a stable address keyed to the opus number, so the specification for a known opus can be reached and cited directly. The Skinner and Aeolian-Skinner list states that it draws on factory specifications and shop notes supplemented by information from owners and players, and that the years it gives are contract signing years rather than years of installation. Pipe Organ Database instrument records link outward to these specification pages, but the two are separate evidential objects with different provenance, and at least one such record’s embedded link still pointed at the older OHS host path rather than the archive host, so an embedded archive link can itself be stale.
The pipe scales archive
Aeolian-Skinner pipe scale data from the company’s own pipe shop is published online by the Organ Media Foundation under a Creative Commons Attribution-NonCommercial 4.0 International license. The foundation states that the material comes from two objects, a binder of pages from the Aeolian-Skinner pipe shop and a notebook prepared for Tommy Anderson, Pipe Shop Foreman from 1957 to 1967, and that it was made available by the family of Robert Sipe, who the foundation says acquired the company and its assets when Aeolian-Skinner ceased operations in the 1970s.
That acquisition statement is the foundation’s own and stands alone: the OHS Pipe Organ Database says only that the remaining assets were sold, without naming a buyer, and no bill of sale, bankruptcy schedule or dissolution filing has been located; the provenance chain corroborates that some shop material passed into Sipe hands, not the scope of any wider transfer. Pipe scale data is manufacturing reference data, not service or installation instruction; the non-commercial license restricts reuse; and the pipe scales archive was reachable on September 1, 2026 while the foundation’s main host did not resolve, so its availability should be rechecked.
What the online layer does not show
Factory state, not present state
The archived stoplists show each organ as it was when it left the factory, together with any revisions carried out by the Skinner Organ Company or Aeolian-Skinner themselves, and the site expressly does not publish stoplists reflecting later work by other builders. A mismatch between an archived stoplist and the instrument in front of you is therefore evidence of later change, not of an error in the list, and the archived lists cannot be used to date or describe a third-party alteration. What the mismatch means for the instrument’s originality is a separate question, answered from the instrument itself and its own documents at Documenting Skinner Originality When the Console or Mechanism Has Changed.
Where condition and alteration notes live
The printed E. M. Skinner / Aeolian-Skinner Opus List compiled by Allen Kinzey and Sand Lawn and published by the Organ Historical Society, not the Aeolian-Skinner Archives website, is where the notes on current condition and alterations live; the website states that it is meant only to supplement, not replace, that published list. The published opus list is a 202-page volume first issued in October 1992, whose subtitle says it is compiled according to company records with input from others and that it includes information on the Ernest M. Skinner & Son Company, which the archived site likewise lists separately from Aeolian-Skinner. The volume’s condition notes are as of whenever they were written, and how fully it covers any particular instrument is not established.
No manufacturer-produced service or installation manual for Skinner Organ Company, Aeolian-Skinner or Ernest M. Skinner & Son instruments was publicly accessible as of September 1, 2026; the manufacturer-derived documentation that is public consists of opus lists, factory stoplists, shop notes and pipe scales, and such manuals may still exist inside OHS-MS-52 or in unprocessed holdings.
Reading the Pipe Organ Database
The OHS Pipe Organ Database is a record system with its own conventions, and its counts, headers and ranges answer questions about records, not about instruments or firms.
Records are not instruments
A Pipe Organ Database record count is a count of records, not of distinct physical instruments and not of the organs a builder built, because the database creates a separate record for each location an instrument has occupied and for each substantial later intervention. As of September 1, 2026, the builder record for Aeolian-Skinner Organ Co. carried 975 instrument records and 84 console records, and the record for Skinner Organ Co. carried 626 and 51; those figures are a dated snapshot of records, are not presented anywhere on the site as production totals, and are not comparable with instrument-search counts, which return every record in which the builder appears in any role.
The builder at the head of a record
The builder name at the head of a Pipe Organ Database instrument record is the firm credited with the most recent work on that instrument in that location, not necessarily the original builder, which appears separately on an Originally line. Record 53780, for example, is headed Unknown Builder with an Originally Aeolian-Skinner Organ Co. line, although its note identifies the organ as Aeolian-Skinner Opus 973 of 1937 with 1940 additions as Opus 973-A; the header reflects the unidentified firm that relocated it, and a reader citing the header alone would misattribute the instrument.
Many records name the source of their opus attribution in a dated note by a named contributor or the Database Manager, and those attributions frequently rest on published opus lists rather than on inspection; for these firms the list the notes cite most often is the E. M. Skinner/Aeolian-Skinner Opus List by Sand Lawn and Allen Kinzey, which the notes give as published by the Organ Historical Society in 1997. Some records carry no note at all, and a note does not say whether the list was checked against the instrument.
Active ranges, date qualifiers and editorial flags
An Active range on a builder record is a database field, not evidence that the firm is trading: as of September 1, 2026, the record for Richmond H. Skinner showed Active: 1931 – Present against a note reading Methuen, Massachusetts, 1931-1942, and the structured range is often Unknown at one or both ends even where the note gives explicit dates. The structured range and the free-text note can also disagree outright; on one other builder’s record as of September 2, 2026, the range began in 1887 while the note gave 1879, and the database does not reconcile the two, so neither does this page.
Two builder entities are named Aeolian-Skinner Organ Co.; the one dated Active: 1983 – Unknown holds instruments built in 1931-32 and 1933, so its dating is an editorial artifact and no later successor firm should be inferred from it, while the entity dated Active: 1932 – 1971 is the one carrying the 975 instrument records. The record titled E.M. Skinner, Inc. carries the flag [Possible error] inside its own note while displaying Active: 1960 – Present, and the Type field labels both corporate firms and individual people as Builder.
Date uncertainty is written inline as qualifiers such as after1990, 1896ca., 1931-32 and 2026 +/-, concatenated into the attribution string rather than held in a separate field, so it cannot be filtered or sorted on; and stoplists exist in two incompatible forms, a structured division-and-stop table and a plain text transcription, of which only the structured form can be queried by stop.
Limits of what is established
Unverified extent and access terms
The finding aids for the two company collections are not the basis for anything above: as of September 2, 2026 the OHS catalog host was not serving those pages to direct requests, and the collection titles, series titles, date ranges and item-level opus entries quoted here come from catalog and search-index entries instead. Extent, arrangement below the series level, processing status, conditions governing access, restriction statements and reproduction terms therefore remain unverified for both the Aeolian-Skinner Organ Company Collection and the engineering department stop lists and specifications, and nothing above should be read as stating them. The general OHS guidelines are the only access terms stated here, and whether a specific opus is documented in either collection is not established.
An unidentified repository
Records that ArchiveGrid describes as extant business records of the Skinner Organ Company, contract files of the Skinner / Aeolian Skinner company, and engineering department organ stop lists and specifications have no identified holding repository as of September 2, 2026: only the record titles are visible through search indexes, and ArchiveGrid’s own record pages are closed to automated retrieval. Those titles are consistent with the OHS collections described above, but consistency is not identity; the two are not equated here, and a blocked route is not evidence that the records do not exist or that no repository holds them.
One name-match lead has been closed: the Skinner family papers, MS 1211 at Yale University Library, concern a nineteenth-century medical practice, a turnpike company and law-school lecture notes and contain no Skinner Organ Company material, as of September 2, 2026; that closes one lead, not Yale as a whole.
Recheck before you rely on any of this
Every custody statement, access condition, address, telephone number, email route, web address, redirect and database behavior on this page is a dated observation, most of them from August 31 to September 2, 2026, and all of it must be rechecked with the custodian or at the site immediately before it is relied on. The OHS page that carries the appointment procedure and the archivist’s email is undated, the guidelines are an undated document, and the archived opus lists carry no revision date, so none of them announces its own changes.
Other places records survive
The company collections are not the only place a document about a particular instrument may sit, and a single-catalog search that finds nothing has not shown that nothing survives.
Correspondence collections
The Organ Library of the American Guild of Organists Boston Chapter holds a G. Donald Harrison collection consisting of correspondence from the organbuilder, which the library describes as not particularly large but of significant interest. As of September 1, 2026, the Organ Library named twelve special collections, including the Harrison correspondence and the Wm. King Covell collection of pre-Second World War European organ photographs, without publishing an extent, date range, arrangement, processing statement or finding aid for any of them, so a request there cannot be framed by box or folder.
The OHS itself names Ernest Martin Skinner correspondence among its holdings on its About the Archives page on September 2, 2026, and its archivist has listed E. M. Skinner and Aeolian-Skinner, in those words, among the firms whose business records and contract files it holds. Scale varies enormously between collections even at one repository; the OHS Aeolian Company photographic collection, from the separate Aeolian Company rather than Aeolian-Skinner, is one linear foot covering 1893 to 1932.
A congregation’s own instrument file
Installation drawings can survive on the customer’s side: the original blueprint for the installation of Aeolian-Skinner Opus 1256 is held within the Episcopal Church of the Good Shepherd Opus 1256 Records at the OHS, a collection titled for one instrument rather than for the builder. That is a single documented instance and does not establish that drawings survive for instruments generally, but it puts a congregation’s own files, and any records it has deposited elsewhere, on the list before anyone concludes that nothing survives for an instrument.
Journal and index routes
The AIO Journal Index lists an article by Bynum Petty, Skinner Review: Documenting the Work of an American Organbuilding Icon, in issue 21/1, March 2006, page 4, under the subject History; the index entry gives the citation rather than the article’s contents. The Diapason reported on October 2, 2018, in a piece by OHS archivist Bynum Petty, that the OHS Library and Archives had moved to Stoneleigh and housed business records and contract files of organbuilding companies including E. M. Skinner and Aeolian-Skinner, and The Tracker for October 2022 again named Skinner and Aeolian-Skinner among the builder collections; neither narrative is a finding aid, and a name in it says nothing about whether that collection is processed or consultable.
The OHS reports the whole Library and Archives as holding roughly 20,000 organ stoplists and photographs, 500 builder nameplates and 15,000 photographs among much else, as of September 1, 2026; those figures describe the entire institution and cannot be attributed to the two company collections.
The records establish what left the factory; what stands in the chamber today is established by inspection and by the instrument’s own documents, and neither the printed opus list nor the OHS collections should be treated as a self-service lookup guaranteed to resolve an instrument’s history. A planning file that carries the archived specification, the contract-file reference and a dated survey of the instrument as found gives an owner, a consultant and a service firm the same starting point.
Frequently Asked Questions
At the Organ Historical Society Library and Archives in Villanova, Pennsylvania, which as of September 1, 2026 holds the Skinner Organ Company and Aeolian-Skinner Organ Company contract files as the Aeolian-Skinner Organ Company Collection, identifier OHS-MS-52, covering 1902 to 1972, with the engineering department stop lists and specifications described as a separate collection; the collections’ extent, arrangement and reproduction conditions remain unverified, and custody and access should be rechecked before you rely on them.
By appointment with the OHS archivist, reached at archives@organhistoricalsociety.org or (484) 488-PIPE as published on September 1, 2026, naming the collection you want, OHS-MS-52 for the contract file or the engineering department stop lists and specifications for the original specification, and quoting the opus number, which is the key both collections are arranged by; only those published guidelines are stated here, and fees, turnaround and eligibility for a specific inquiry are not established.
Yes, if a specification page exists for the opus: the Aeolian-Skinner Archives website, which the Organ Historical Society hosts on an archive subdomain of the Pipe Organ Database as of September 1, 2026, publishes per-opus specification pages at addresses keyed to the opus number, but those stoplists show the organ as it left the factory, with any revisions by the company itself, and exclude later work by other builders.
No; its counts are counts of records, one for each location an instrument has occupied and each substantial later intervention, so the 626 instrument records shown against Skinner Organ Co. and the 975 against Aeolian-Skinner Organ Co. on September 1, 2026 are a dated snapshot of records, not a production total and not a survey of instruments in existence.
Because the archived stoplists show the organ as it was when it left the factory, as the site itself states, a difference between the archived list and your instrument is evidence of later alteration rather than of an error in the list; the printed Kinzey and Lawn opus list published by the OHS, not the website, is where notes on current condition and alterations are carried, and the website says it only supplements that list.
Yes, in specific documented cases outside the Organ Historical Society. The AGO Organ Library in Boston holds a G. Donald Harrison correspondence collection, though as of September 1, 2026 it published no extent, arrangement or finding aid for any of its special collections; an original installation blueprint for Aeolian-Skinner Opus 1256 survives in a church’s own records deposited at the OHS; and one set of records described by ArchiveGrid still had no identified repository as of September 2, 2026.