The fonds consists of microfilmed copies of parish registers, registers of service, financial records and early records of St. John's Anglican Church from 1825 to 1935.

Fonds is comprised of records created by or collected by Stephen Ogden documenting the Tiny Township Stop Dump Site 41 campaign. Dating 1979 through 2016, it represents a significant episode in Canadian environment activism and is comprehensive in scope. Among the materials included are: notes for speeches; transcriptions of government environmental assessments and WYE Citizens Group meetings; WYE Citizens Group press releases; maps and records of water well locations near Site 41; hydrological and geotechnical records pertaining to the watershed characteristics of the Site 41 area; MOE correspondence and statements relating to proposed dump site management, waste management and related technological considerations; Simcoe County “Corporate Services” records including meeting minutes and agendas, notifications, memorandum, notes, correspondence and emails, and media clippings; court proceedings and legal documents obtained through Freedom of Information requests made by Stephen Ogden; photographs, dossiers for exhibits; audio-visual materials including cassette tapes, VHS tapes, CDs and DVDs.

This fonds consists of two binders enclosing the typescript of a narrative called "Rivers of Ice, the Voyage of Captain George Tyson." When the safety of the ship is threatened by being crushed in the ice, a contingent take refuge on a large ice floe. The narrative follows their vicissitudes and ultimate rescue.

This addition to the fonds consists of maps, correspondence and related documents of the Bronson Company, the Gatineau Power Company, and the Ottawa Power Company collected by William Hamilton Munro.

This fonds consists of correspondence, drawings, reports, press clippings, biographical material, photographs, maps, slides, manuscripts, publicity materials and certificates relating to the aeronautical engineering, nuclear engineering, consulting engineering and political career of Winnett Boyd.

This collection consists of texts of papers and speeches written by William Sansome Tucker, D.Sc., A.M.I.E.E. in his particular area of expertise-sound phenomena-as well as other topics. Also included are letters patent, photographic and diagram illustrations as well as a few tear-sheets from periodicals about his work. There are also two or three papers by Dr. Tucker's colleagues.