Files which are associated with administration of the MNI, but which contain personal materials and records that belonged to Dr. Penfield.

Sub-series includes all of Dr. Penfield's "correspondence-domestic", or personal correspondence, which was taken from his office at the Montreal Neurological Institute. This sub-series includes material which Dr. Penfield had collected before arriving at McGill in 1928. In particular, it includes correspondence between Dr. Penfield and his wife, Helen Kermott Penfield.

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 consists of all manner of notes and a variety of secondary materials gathered by Lewis as he researched the life of his grandfather. Secondary materials include historical publications, photocopies of reference works, scientific article reprints, and newspaper and magazine clippings. These series also contains dubbed copies of taped interviews with Penfield obtained by Lewis through the CBC, as well as transcripts of these interviews and others conducted by Lewis in the course of preparing the biography.

This sub-series consists of various drafts of Something Hidden. The drafts are not always easy to distinguish in terms of chronological sequence, but an effort was made during the initial processing to roughly order the drafts by version and divide them by chapter. Also included are notes for additions and deletions, labeled “Adds and Outs.” At times, some research notes and primary Penfield material are interfiled with the drafts. This series also includes a draft of the screenplay for the film.

The sub-series consists on the billing done through the Régie de l'assurance-maladie du Québec by Dr. Vineberg. It shows also the disagreement between Vineberg and the professionals association regarding the billing of operations done by Vineberg. Also, problems of billings and reimbursement from Vineberg to the Régie. Correspondence of Dr. Augustin Roy, Corporation professionnelle des médecins du Québec, Dr. Claude Mercier, Association de chirurgie cardiovasculaire et thoracique du Québec and Dr. Raymond Robillard, Fédération des médecins spécialistes du Québec.

Includes correspondence, statements, registered letter, accounting sheets and forms.

Sub-series consists of eight files pertaining to the bonds and stocks of Dr. Vineberg. Files on the ownings of Vineberg and with several companies ou courtiers.Also there is a file on a project of exploiting uranium mining properties in the vicinity of Lake Little Manicouagan in the North of Quebec Province. Files are in alphabetical order
Includes correspondence, lists, telegrams, photographs, statements, newspaper clipping, receipts, miner's certificate, map, reports, agreements, a notice of staking of mining claims, declaration, circular letters and one prospectus.

Subseries consists of correspondence, notes, working plan for the publication of the first volume of The Persisting Osler. It shows the outlines of the project. Contains two files.