Photographs and illustrations of colleagues, physicians, and other medical professionals.

This series contains a group of calendars, or diaries, kept by Dr. Penfield's wife between 1947 and 1974.

This series contains correspondence between Helen Kermott Penfield and Wilder Graves Penfield, as well as other friends and family between 1920 and 1932.

This series consists of correspondence, notes, reports, and report drafts which were created and collected by Dr. Penfield as part of his travels to, and work in, Britain, the Middle East, and the Soviet Union for the National Research Council of Canada during the Second World War. (TR = Travels)

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 Penfield's published and unpublished writings.

This series consists of records generated by Dr. Penfield as an employee of McGill University or the Montreal Neurological Institute. Most of the material in this series is the property of those institutions, and is not considered personal material.

This series contains typed drafts and published sermons both written and delivered by Dr. Penfield, as well as published sermons by various Presbyterian/United Church ministers.

This series contains material concerning the "Sussex", an English Channel passenger steamer on which Dr. Penfield was travelling in 1916 when it was hit by a German torpedo.

This series contains correspondence between Dr. Penfield and friends and colleagues, as well as social and professional institutions. The series' contents were found at the Montreal Neurological Institute in 2008, and thus, were not included with original correspondence series (Series C) of the Penfield Archive. The records in this series have been catalogued at the item level.

This series consists of most of Dr. Penfield's correspondence. The series is composed of three sub-series corresponding to Dr. Penfield's "Simple System." (C = Correspondence)