Gould's papers fall into two series. Family correspondence covers the years 1856 to 1860, when Joseph and his brother Charles were travelling in Europe, and consists of letters home from both young men, and their parents' replies. Manuscript music comprises two volumes of church anthems, with some organ music; some are original compositions by Gould and Samuel Warren. Related to this is Gould's brief manuscript account of the origin of the Mendelssohn Choir. Some family photographs are also included.

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.

The fonds consists of the correspondence of John Wightman, related to the McGill Graduate's Society in the Maritime provinces.

McDonald's correspondence, 1791-1860, mostly concerns business and property matters, but also includes personal correspondence. There are statements of account with McTavish, Frobisher & Co., 1799; with McTavish, Fraser & Co., 1803-1804; with McTavish, McGillivray & Co., 1808-1809. There are two volumes of autobiographical notes assembled in 1859 and covering the period 1791-1816.

There is a second copy of the autobiography, probably transcribed in the late 19th century. Written on the front fly leaf is the name: A.E. MacDonald. It has 63 leaves, and there are minor textual variants.

Three letters from Seaton relating to the Rebellion of 1837, including a letter to General Fitzroy Sommerset about the capture of St-Eustache.

Letter from George Washington, thanking Cochrane for assistance with some hounds sent by the Marquis de la Fayette and declining to promote him (or his client) to the office of Continental Treasurer.

Andreassen's papers fall into three series: personal materials, diaries, and professional files. Personal materials include family correspondence, 1929-ca 1932, and ca 30 cm of class notes and draft papers stemming from his student years, largely at Louisiana State. There are also files of private correspondence, some addressed to Mrs Andreassen, from the period 1975-1980. Andreassen's diaries cover the years 1936-1940, 1945-1952, 1962-1965, and 1968-1976. They record the working day and are interleaved with memoranda and correspondence, often of a personal nature. Professional files vary in nature with each stage of Andreassen's career, but correspondence and reports are consistent elements. To these may be added copies of surveys and inventories of the Louisiana Historical Records Survey, expense accounts and photographs arising from his work for UNRRA, records of archival deposits and drafts on an institutional history prepared as Archivist of CNR, and annual reports written as McGill Archivist.

These scattered items of correspondence deal with Porter's resignation from the Cincinnati, Hamilton and Dayton Railroad Co. (1892), stock purchases (1907) and other financial matters (1927-1928).

The fonds contains chiefly the writings of Jeremy Walker on a variety of issues in moral philosophy and related literary topics. These writings, including anthologies, drafts of books and lecture notes, demonstrate the range of his eclectic interests from his formal studies of Kierkegaard and moral philosophy to his more personal intellectual pursuits concerning the literature of Kipling, Jane Austen, and Dostoyevsky, as well as the poetry of Woodsworth and reflections on Englishness. There are also examples of his published and unpublished poetry.

His more personal writings are in diaries that cover more than 20 years of his adult life and in contrast to his erudite writings on grand philosophical topics reflect his feelings and at times his dreams, on the state of his health, relationships with women, and recount the day-to-day events of urban travel and socializing.

His personal and family relationships are reflected by correspondence with family, friends and students, photo albums of travels to England and Greece, travel diaries document his summer activities from 1947 -1950, including lists of books read, drawings and photographs. As well, in a file titled Personalia (3) Apologiai Walker provides some personal chronologies, and reflects upon his writings and his life.

Fonds consists primarily of correspondence between Hertel de Rouville and members of the Canadian government, including Chief Secretary of Lower Canada Sir Thomas William Clinton Murdoch (1809-1891) and Governors General Lord Gosford and Charles Bagot, regarding financial losses he incurred during the rebellions of 1837, 1838, and 1839, and half-pay claims dating from his time as captain of the Canadian Voltigeurs during the War of 1812. Also included are five envelopes with wax seals intact.