The collection consists of typescripts and proofs of stories, essays and reviews.

McLennan's manuscripts of his literary works include drafts of Old Canadian Songs, 1885, Eighteen Poems, 1885-1898, The Indiscretion of Grosse Boule, ca 1890, Une soeur, ca 1890, As Told to His Grace, 1891, Mon compère Melchior and an early version of A King for a Week, 1892, John McDonnell of Scotus, 1896; probably an early version of Spanish John, A Question of Courage, 1896?, The Span o' Life, 1897, translations of 8 poems from Henri Murger's La Vie de Bohème, 1885, the outline of a projected novel, The Losing Side, and his Notes pour servir à l'histoire de la ville de Montréal, 1880-1888.

Fonds consists of a notebook kept by Louis Gagné of his physics and metaphysics class given by Abbot Demers at the Séminaire de Québec.

The domestic finances of the Lyman family are documented by Mary Lyman's household account book, 1849, and by family accounts from 1885 to 1889. Correspondence between the Lyman and Corse families covers the period 1820-1827. The remainder of the papers consists of Corse family business letters, 1815-1853; estate documents, largely insurance policies, 1828-1856; Roswell Corse's cash book, 1842-1853; and documents concerning his buildings, 1846; a statement by Roswell Corse concerning his late brother Henry's bastards, 1853; papers of Henry Corse concerning his contribution to the construction of St. Lawrence Hall, 1845-1847; and documents connected with building supplies, 1845-1848, and R.and H. Corse and Lyman business correspondence, 1806, 1842-1846, 1852-1853.

Fonds consists of a travel journal from a trip to Italy kept by Duboille.

Contains an album of poems and drawings created by a Miss C. M. Murray.

Fonds consists of a late seventeenth-century manuscript containing a critical commentary on Machiavelli's The Price, created for the use of Agostino Cerretari.

Fonds contains manuscript of the novel "The Unreasoning Heart."

Fonds contains forty-three letters to Casey A. Wood from Howland Wood describing the Gampala Larin hoard and the finding coins in Ceylon, 1929-1934.

Conains a log or "continuation of proceedings" of the H.M.S. Hannibal maintained by its commander, E.J. Smith.