Series consists of seven subseries: P125/F1 Program, P125/F2 Correspondence, P125/F3 Accounting, P125/4 Abstracts and Presentations, P125/F5 Presidential Address, P125/F6 Final Report, P125/F7 Photographs.

Series consists two files of correspondence. One file relates to correspondence for 2000/2001 and one file relates to correspondence relating to the beginnings of the AOS.

Series consists of two subseries. Subseries P125/P1 Charles S. Bryan Papers contains materials such as reprints and articles prepared for filing by Bryan. Subseries P125/P2 consists of albums prepared by Bryan.

Series consists of five subseries: P125/B1 Officers, P125/B2 Board of Governors Meetings, P125/B3 Standing Committees, P125/B4 Ad Hoc Committees, P125/B5 Reports. Includes agenda, minutes, related documents, correspondence, drafts, reports, statements of receipts and disbursements, lists of officers, lists of attendees, posters and proposals.

Series consists of notes and photocopies compiled by Earl Nation re. Geoffrey Jefferson (formerly Acc. 549), and correspondence with I.N. Dubin, M.D. (formerly Acc. 591).

Series consists of two subseries: P125/C1 Correspondence of the Officers and P125/C2 Correspondence with Members. Includes almost only correspondence.

Series consists of tribute files.

Series consists of five subseries: P125/E1 Membership Proposal Files, P125/E2 Honorary and Emeritus Membership, P125/E3 Ballots, P125/E4 Membership List, P125/E5 Certificates and Medals.

Series consists of three subseries P125/I1 Osler Library of History of Medicine, P125/I2 #13 Norham Gardens, P125/I3 American Association for the History of Medicine showing the privileged links of the association with these organizations. Series includes correspondence, receipts, newsletter, grant request and one agenda.

Series consists of three subseries: P125/J1 Persisting Osler, P125/J2 American Osler Society, inc. : Biographical Directory, P125/J3 The Oslerian, pertaining to the publishing activities of the American Osler Society. Series includes correspondence, notes, working plan, photographs, quotations from printers, working sheets, curriculum vitae, bibliographies and biographic forms, newsletters and reprints.