Sub-series C-1 consists of manuscripts, typed copies and printed versions of published articles written or co-authored by Dr. Cone. In some case only printed copies exist. This sub-series is comprised of 23 files (files no. 170 to 192).

Consists of the records of deceased patients who were only consulted between 1926 and 1939.

Sub-series A-1 contains experiment notebooks from the Chemistry Laboratory, Cambridge, concerning the study of stereochemistry. Of special relevance are the experiments pertaining to the optical activity caused by the restriction of the rotation of a trivalent nitrogen atom. It includes material produced at the Sir William Dunn Institute of Biochemistry related to oxidation reduction systems with particular relevance to the reduction of glutathione and the study of peroxidases in milk and horseradishes. This sub-series is comprised of 4 files (files no. 1 to 4), which are arranged chronologically.

This sub-series consists of correspondence regarding the funding, research, writing and publication of Something Hidden, and its spin-off film. This series also contains a few letters sent by Lewis to acquaintances of the Penfield’s, who responded to Lewis’ request by returning material sent by the Penfield’s to others and retrieved by Lewis by request. This series also contains a small amount of correspondence concerning the Penfield property at Magog Meadows.

This sub-series contains passports of Helen Kermott Penfield.

This subseries contains research files and writings by William Feindel on diverse subjects. Topics include: William Osler and his practice and connection to Wilder Penfield and the Montreal Neurological Institute; Mayans; China; Japan; and the history of medicine including on various individuals and techniques.

Sub-series A-2 contains miscellaneous correspondence concerning a wide variety of medical topics, and dating, for the most part, in the 1930s-1940s. This sub-series is comprised of 28 files (files no. 72 to 99), which are arranged alphabetically. The records in each file are arranged in reverse chronological order.

Subseries consists of card indexes of Dr. Penfield's writings. These indexes were produced by Dr. Penfield himself.

This sub-series documents Madeleine Parent's academic achievement, honorary doctorates, and recognitions. Materials include primary and secondary school certificates and report cards, and awards. There are also files with documentation on honorary doctorates Parent received from various Canadian universities. Awarding universities include Windsor University, Athabasca University, Carleton University, and Trent University. Moreover, there is a file on her nomination to the Canadian Labour Hall of Fame. It is important to note that only a photocopy exists for some certificates and awards.