Fonds includes tapes of a conversation with W. A. (Bill) Pritchard in which he provides an oral history of the Socialist Party of Canada (SPC) and describes his activities as a militant within the party from 1911 to 1927. Pritchard devotes a good deal of time to describing his many experiences as editor of the Western Clarion, the party newspaper, running in various elections, and his tours of B.C. and Alberta on behalf of the party. Pritchard also discusses the ideology of the Socialist Party of Canada and the ideological splits within it that occurred in the 1920s. Fonds also includes a recording of a conversation with Brandon Communist Frank Wiszniowski dealing with Wisznoiwski's evolvement in various organizations following his arrival in Brandon in 1926. Fonds also includes a taped conversation with former Brandon Mayor Stephen Magnacca concerned with various features of political life in Brandon.

Fonds contains materials related to the early picnics organized by the committee. Materials include invitations, announcements and mailing lists, guest books, financial records, and photographs of people at various picnics.

Fonds consists of fiction, non-fiction and poetry manuscripts, a notebook, leaflets and periodicals, newspaper clippings, and a hardcover copy of The Growing Question, a gardening book published by Fillmore in 1957. Materials relate to Fillmore's interests in horticulture and political activism.