This series consists of the manuscripts, and related materials, of Dr. Penfield's published and unpublished writings.

This series contains working papers, notes, drafts, articles, and ephemera compiled by Cushing during the preparation of his biography of Sir William Osler. The material is arranged alphabetically generally by topic or author. There are also two files of Cushing's correspondence related to the publication of the biography.

Series consists of two subseries, P125/G1 William B. Bean Student Research Award committee documents and P125/G2 Candidates Files containing records created by the committee administering this program. This research studentship has been developed to support research in the broad areas of medical history and medical humanism. The successful applicant may be eligible to present a paper based on his findings at the annual meeting of the American Osler Society. Series includes correspondence, report, copy of last will and testament, application forms, drafts of announces, request of information, research proposals, curriculum vitae and bibliographies, letter of appraisal and notification of award.

This series consists of original and photocopied diaries, correspondence, personal documents, and manuscript drafts belonging to Wilder Penfield and spanning his lifetime. The material is largely personal in nature and is the result of his travels and exchanges with family, friends, and colleagues. The series is divided into the following sub-series: diaries, correspondence, personal documents, memorabilia, and manuscript drafts.

Series includes miscellaneous textual records and artefacts belonging to Charles Lewis and Beatrice Maud Young Lewis.

Series D consists of photographs, postcards, slides, x-rays, and other visual material and artifacts such as copper printing plates. The visual material is located within other series, particularly the Correspondence Series A, but described individually here.

Series C contains a variety of images, such as of Dr. McNaughton, Dr. Penfield, Dr. Cone and other colleagues, as well as images related to his professional work, such as of brains.
This series is divided into nine (6) sub-series:
C/1) Photographs
C/2) Drawings
C/3) Slides
C/4) Postcards
C/5) Film reels
C/6) Technical drawing

Visual documents produced by Pappius that are not integrated into the documentation of a specific activity. Images of colleagues and rat brains.