There is business correspondence, 1792-1800, with letters from among others Alexander Mackenzie, Joseph Frobisher, Alexander Henry, Simon Fraser and Roderick Mackenzie. There are also minutes and resolutions of the Executors of McTavish in a bound volume; and a contemporary copy of the minutes of the executors of his will, 1805.

Frobisher's papers comprise a letterbook of the North-West Co. containing copies of letters written by Frobisher from April 1787 to October 1788, two original letters to Simon McTavish, 1796, and one from him, 1787, business and legal documents, largely concerning the estate of James McGill, 1810-1834, and a diary, 1806-1810, mostly a record of where he dined.

Family correspondence chiefly from 1763 to 1820 and family history documents.

Fonds consists of letters written to P.M. Roget by various people, 1830-1856.

The fonds documents Dorothy Duncan’s personal and professional activities as an American-born Canadian writer and painter, primarily between 1930 and her death in 1957. Duncan’s career as a writer is represented by scrapbooks, clippings, and photographs related to her published works, two unpublished manuscripts, and contracts and correspondence with publishers and her literary agent in New York. Her activities as a painter are documented in clippings, lists of paintings, and contracts with art galleries. The fonds also contains personal correspondence, including letters from friends, family, fans, and a significant number of letters from her husband, Hugh MacLennan. Duncan’s notebooks and diaries also attest to her personal and professional activities. They document her early adulthood in Illinois and her later life in Montreal, and include notes, agendas, and a ledger. The fonds also contains two albums of personal photographs.

The series consists of Dorothy Duncan’s personal and professional correspondence. The personal correspondence includes a significant number of letters from Duncan’s husband, Hugh MacLennan, as well as letters from family and friends. The professional correspondence is comprised of fan mail, exchanges with Duncan’s publishers, sample contracts, newsletters, and letters from other writers. Duncan’s correspondents included Stephen Leacock, Lorne Pierce, Robert J.C. Stead, Bruce Hutchinson, Gwethalyn Graham, David Walker, and C.P. Snow. This series also contains a file about graphology which is made up of reference material and several handwriting assessments by Robert H. Simmons.

Letters and papers relating to employment with the Hudson’s Bay Company. These include letters of appointment, official announcements, lists of officers of the Hudson’s Bay Company, and an inventory the posts and officers in the Albany River district.

The fonds documents Sharon Thesen’s personal and professional life as a poet, editor, and professor from 1961 to 1989. All records in the fonds were collected by Thesen herself, and are primarily composed of correspondence, journals, and creative work. Most of the creative work is composed of drafts and edited versions of Thesen’s own poetry, essays, and articles, but also includes work sent to her for review. While most of the records are textual, there are a small number of pictures and postcards that were sent to and taken by Thesen, and are mostly of a personal nature. Notably, a large section of the fonds is made up of letters that include correspondence between other published and acclaimed authors such as Michael Ondaatje, Christopher Dewdney, Lola Lemire Tostevin, Ken Norris, Judith Fitzgerald, Phyllis Webb, Gerald Burns, and others. Lastly, the fonds also includes Thesen’s journals from the mid-60s to the mid-80s which contain her daily activities, her personal thoughts, as well as some of her creative work.
The fonds is arranged into three different series, Chronological Files, Journals, and Personal & Professional Records, as per the internal organization of the records. The main forms of these records are textual records, but also include graphic/photographic materials and mixed media. The records are arranged chronologically and intellectually within the series.