The collection consists of material related to environmental issues in the Elmira area, largely compiled by APT Environment, a watchdog of Uniroyal Chemical (now Chemtura Canada Company). Fonds is comprised of the following series: Uniroyal historical, background information; Newspaper clippings; Environmental organizations; Public meetings, Open house;s Uniroyal reports; Uniroyal Public Advisory Committee (UPAC)/Crompton Public Advisory Committee/Chemtura Public Advisory Committee (CPAC); Other chemical companies; Environmental Appeal Board Region of Waterloo; Government of Ontario; Research publications, papers, articles, theses; Chemicals - articles, information; Water; Fires

Fonds consists of the records of the Division of Ophthalmology of Women's College Hospital from 1950-1978. Fonds contains minutes, annual reports and correspondence. Fonds is comprised of the following series: OPH-1 Annual reports of the Division of Ophthalmology OPH-2 Minutes of the Section of Ophthalmology OPH-3 Correspondence of the Division of Ophthalmology

This fonds consists of school board minute books, photographs including priests, and rough drafts of the chapters involving education from Denis Landry's book Azilda, comme je l'ai connu : document historique 1890 à 1972.

This fonds consists of correspondence, press releases, a written history and newspaper clippings.

This fonds consists of photographs and various textual material.

This fonds consists of one VHS copy of a Mond Nickel film, originally recorded on 16mm film.

Fonds consists of one ration cheque booklet.

Fonds consists of material relating to J. Cooke Concrete and to William Jacob Cooke, and includes deeds and other legal documents relating to lands; correspondence; ephemera; news clippings; maps and plans; notes on biographical and administrative history; photographs; and artifacts.