Series B contains correspondence between Dr. McNaughton and other professionals, as well as obituaries and newspaper clippings.

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

Consists of a collection of records relating to Charles Lewis's father's records (also named Charles Lewis).

Series contains material related to Charles Lewis’s pharmacy accreditation and practice. It contains diplomas, licenses, certificates, patent documents, catalogues, testimonials, notes, correspondence, legal documents, financial documents, business documents, and obituaries.

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

Series consists of 5 drug formularies estimated to contain approximately 1200-1300 formulas. Notebooks also contain financial data (half-yearly summaries) for approximately 12 years dated between 1896 and 1914, of great significance for quantifying the size of the business and its inventory value (see also File no. 19 for additional financial data).

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.

This series contains varied materials created or kept by Helen Kermott Penfield. The series consists of letters, almost exclusively from Wilder, personal documents, diaries, and memorabilia, including an extensive family chronicle composed by Helen. The materials reflect above all Helen’s relationship with Wilder, but give a glimpse of her childhood and education, service in the war, life in England, social activities in Montreal, and travels with Wilder. This series is divided into four sub-series: diaries, correspondence, personal papers, and memorabilia.

This series consists of a small cache of papers belonging to other Penfield family members. This series includes correspondence addressed to the mothers of Wilder Penfield and Helen Kermott Penfield, Mrs. E.P. Kermott and Jean Jefferson Penfield; a diary and letters of Penfield’s beloved sister Ruthmary Penfield Inglis, whose brain tumour Penfield unsuccessfully operated on; and a few items pertaining to Penfield’s daughter Ruthmary Penfield Lewis, mother of Jefferson Lewis.

This series contains notes, drafts, research files, and correspondence pertaining to the funding, research, writing, and publication of Something Hidden and its spin-off film concerning Dr. Penfield’s life and work. This series is divided into four subseries: correspondence, research files, manuscript drafts, and memorabilia. The bulk of this section is various drafts of Something Hidden. Some primary material of the Penfields is interfiled with material in this series, presumably consulted in the preparation and editing of various portions of the manuscript.