Fonds consists of documents, which illustrate the founding, and the activities of the American Osler Society. Included are the administrative and financial documents, minutes, reports, correspondence of the officers, correspondence with members, files regarding links with other organizations and a survey. The fonds also contains documents related to membership, the annual meeting, the William B. Bean Student Awardship, the John P. McGovern Award Lectureship and publications generated by the association. Fonds contains the following series:
P125/A Constitution and Structure
P125/B Administration
P125/C Correspondence
P125/D Finances
P125/E Membership
P125/F Annual Meeting
P125/G William B. Bean Student Research Award
P125/H John P. McGovern Lecture
P125/I Public Relations and Links with other Organizations
P125/J Publications
P125/K Special Projects
P125/L Archives

Series consists of tribute files.

Subseries contains correspondence generated by the officers of the American Osler Association.
Contains one file of notes and photocopies complied by Earl Nation re. Geoffrey Jefferson (formerly Acc. 549), and correspondence with I.N. Dubin, M.D. (formerly Acc. 591)
Contains two files of correspondence related to the AOS during Larry Longo’s appointments of Member, Executive Council 1981-1985, 1987- present, Secretary Treasurer 1988-2000, Second Vice President 2001, First Vice President 2001-2002, President 2002-2003.
Contains two files of correspondence from Charles Roland, one file relates to correspondence for 2000/2001 and one file relates to correspondence relating to the beginnings of the AOS, and one file of materials compiled by Charles S. Ryan.

Subseries consists of a project done by Dr. Clyde Partin to create a synopsis of presentations given at AOS annual meetings beginning in 1998. Includes a synopsis, presentation, and a compendium of the world’s Oslerian society presentations with rare annotations and a brief history of the various Oslerian clubs.

Subseries consists of a survey conducted by W. Bruce Fye for the twentieth anniversary of the American Osler Society, "Survey of the American Osler Society: its Goals – its Future". Members were asked to give their opinion to help in guiding the Board of Governors. Includes files containing correspondence, questionnaires, drafts, working notes, compilation, graphics and membership list.

Subseries consists of information about a project of Dr. Earl F. Nation to produce a reduced copy of the Osler bust sculpted by Hans Schuler and exhibited at Johns Hopkins Hospital. Includes correspondence.

Series contains materials related to AOS special projects, including procuring a bust of William Osler, a survey on the American Osler Society, and a synopsis of presentations given at American Osler Society. Series includes correspondence, questionnaires, drafts, working notes, compilation, graphics, a membership list, a synopsis, a presentation, a compendium of the world’s Oslerian society presentations with rare annotations and a brief history of the various Oslerian clubs. Also includes a subject index to American Osler Society Presentations.