Fonds consists of correspondence; photographs; and his long lost memoirs largely relating to his involvement in the 1837 Upper Canada Rebellion; and his interactions with such notables as William Lyon Mackenzie, Sir John A. Macdonald, Edward Barker, Pirate Bill and his daughter Kate, and a murderous Captain of the Fort Henry Guard.
Fonds contains film footage, originally shot in the late 1930s, by John Thomas Corkill, while a mining engineering student at Queen's University at Kingston, and includes Queen's football games, Queen's Bands, campus scenes and students, the 1939 Queen's Science Formal, the Napanee River, and various mining camps.
Fonds consist of an album depicting the life of a student at Queen's University at Kingston, in general, and that of a medical student in particular, during his time, not only in Kingston, but as a resident in New York City.
The fonds consists of correspondence, prose and photographs. Correspondence includes letters to his wife, sister and daughter. Prose includes manuscripts on landscape painters and an untitled novel written when Watson was 15. Included with the personal documents are a marriage license and a will.
