Campbell's papers contain some students materials, a small amount of correspondence, and commemorative materials associated with his retirement in 1950 and his 75th birthday in 1961. Student materials consist of mimeographed lecture notes for a course by Dr. J.C. Meakins, with Campbell's handwritten notes. The subjects covered are heart and lung diseases and the nervous system. Correspondence consists of a letter from Lady Drummond offering the services of the Canadian Red Cross Society to Campbell, 1917. A volume of photographs and biographies of doctors and nurses connected with the Department of Obstetrics and Gynaecology at the Montreal General Hospital, 1883-1950. was assembled by Campbell himself. Also included is 4 cm of correspondence and questionnaires, largely from former interns and residents who had served under Campbell's regime. An album of letters from former colleagues and friends commemorates Campbell's 75th birthday, 1961.
Most of this collection consists of the selected incoming personal correspondence of Caroline H. Pelton, 1846-1873, and some correspondence of members of her family, 1842-1905. Also included are two diplomas awarded to Caroline Pelton from the McGill Normal School, 1860 and 1861 and family photographs. There are also selected financial records of St. George's Church, Montréal, 1882-1885.
The fonds consist of draft reports and texts of speeches given by Vincent de Pasciuto-Ponte as well as bound reports and promotional material related to projects that Ponte was involved in through his work with architect I.M. Pei including McGill College Avenue and Place Ville Marie in Montreal, Quebec. In addition, the fonds contains published materials such as periodicals related to art and architecture, maps, travel literature and guidebooks (mostly relating to travel to Rome, Italy). Six black and white photographs of Ponte are included.