Collection consists of records relating to the founding of the Toronto Stock Exchange by Herbert Mortimer and others; financial records; genealogical material pertaining to Herbert and other members the Mortimer Family; and early real estate maps of Durham (1882) and Port Arthur, Ontario (1887), "Railway Guide to Manitoba", issued by the provincial government (1887), and the City of Vancouver ('Canadian Pacific Town Site' - 1887).
Fonds consists of a notebook containing "Notes on Logic taken from the lectures of Prof George, delivered at Queen's College durin gthe session of 1853-1854" and a "Synopsis of Pearson on the Creed, Answers to Examination Questions".
The fonds consists of: correspondence, both written and received by W.W.Campbell from a variety of family members and friends, including Charles G. D. Roberts, the Earl of Aberdeen, Pauline Johnson, and Archibald Lampman; diaries; manuscripts, typescripts and printed copies of dramatic works, poetry and prose; clippings scrapbooks of reviews, comments and articles; photographs and other personal documents.