Fonds contains the manuscript of Dr. William Rees on the treatment of malaria, a lecture given before the Natural History Society of Montreal in the 1860s

The William Peterson papers consist of two folders of Sir William's receipts and bills. They include gas and phone bills, subscriptions, charities, books, personal items, and receipts of various kinds.

Fonds contains Whitwell's notebooks at McGill on lectures in Physiology, Pathology, Materia Medica, Practice of Medicine and Surgery. The lecturers include Drs. W. Fraser, W. Wright, A.F. Holmes and G.W. Campbell. The fonds includes six notebooks.

The Fonds consist of both personal and professional correspondence relating to his mathematical career. Colleagues and friends from the mathematical profession have provided letters (incoming/outgoing), publications, newspaper and magazine clippings, and CVs over the course of 66 years. Correspondence comes from H.S.M. Coxeter, Donald O.Hebb, Paul Erdos, Bela Bollobas, John Conway, Janos Komlos, J.A.H. Hunter, and other notables within the field of mathematics. In all, they comprise of 1.11 m of textual records, as well as 20 photographs depicting family and friends of Dr. Moser's and a painting; includes one audiotape and one CD.

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.

The fonds consists of Redbird ski songs from the 1930s and clothing owned by William Maxwell Tait, including an original Redbird Parka (approximately 1930), original Redbird sweater (approximately 1930), Scarlet Key Society sweater (approximately 1930) and a reversible Redbird Parka, thought to have been purchased around 1960.

Three scrapbooks document Birks' involvement with McGill, particularly with the Theological Colleges and the Faculty of Divinity. One contains newspaper clippings and correspondence (1912-1913) concerning the United College of Theology. The second scrapbook contains newspaper clippings and correspondence (1912-1948) on the establishment of the Faculty of Divinity at McGill. The third contains telegrams concerning the appointment of Sir Auckland Geddes as Principal in 1919, as well as newspaper clippings regarding the McGill Fund Campaign (1911) and the Patriotic Fund, (1914-1917). There is also correspondence about church matters and the Joint Theological Colleges and brief accounts of the establishment of the latter, correspondence, minutes, reports, reminiscences and notes document the establishment of the Faculty of Divinity in 1948. There is also a builder's contract and accounts for the Birks building on University Street and a draft fragment of a historical story or novel set in the 14th century about a Richard Birks.

Typed copies of the official and private correspondence, 1814-1821, held in the McCord Museum in the William MacKay Papers. They consist mainly consist of military records such as commissions, 1813-1814, correspondence between members of the British Indian Department, including Lt. Col. Robert McDouall and his description of the siege of Prairie du Chien, with reference to the Omaeqnomenew (Menominee), Hocak (Winnebago), and Meskwaki (Fox) warriors who fought alongside British forces, as well as to the Potawatomi leader Main Poc (referred to as Marpock), 1814-1815 and copies of correspondence of Capt. Thomas Anderson with Lt Col. Robert McDouall on military actions, supplies and Indian relations, 1814-1815. There is also a newspaper clipping about Alexander MacKay and the partnership agreement admitting William MacKay and David Mackenzie into the North West Company in 1796.