Fonds consists of textual and visual materials created and received by Dorney over the course of his career, including drafts and reprints of most of his published writings, teaching and course materials, audio-visual materials, framed items, ephemera and realia. Of interest is an original map by Dorney which attempts to reconstruct the original vegetation patterns in North Dumfries Township in Waterloo County in the 19th century. Dorney's collection of slides is particularly significant in its documentation of natural vegetation, urban impact and areas of ecological interest both locally and elsewhere and includes extensive documentation of the "mini-forest" at his home at 124 Amos Ave. in Waterloo.

Fonds consists of records accumulated by Marcel Pequegnat in his professional roles as superintendent of the Kitchener Water Commission, vice-chairman of the Grand River Conservation Commission, and president of the Arthur Pequegnat Clock Company; and records collected by him relating to the history of these bodies.

Records relating to the Kitchener Water Commission and its predecessor, the Berlin Water Works Company, span from ca. 1887 to 1961, and are mainly from 1898 to the 1930s. Records relating to the Grand River Conservation Commission cover the period from 1939 to 1943. Includes correspondence, contracts and other legal documents, reports, minutes, architectural and technical drawings, photographs and other visual material, press clippings, ephemera, and advertising material.

Fonds consists of records collected and created by Judy Godfrey in her role as a member of the Muskoka Acid Rain Petition Committee and as a citizen concerned about the issue of acid rain. Material relates to Godfrey's efforts to learn about and raise awareness of acid rain and generate support for the petition for action on acid rain among Muskoka-area associations and individuals, as well as her communication with government representatives about the issue. Includes newspaper clippings, correspondence, ms. notes, petition forms, reports and pamphlets, etc.

Fonds consists of records documenting John Patterson's involvement with both the Muskoka Lakes Association and the Canadian Coalition on Acid Rain. Fonds is divided into two series, the Muskoka Lakes Association series and the Canadian Coalition on Acid Rain series. Fonds contains correspondence, agendas, minutes, financial reports, budgets, Muskoka Lakes Association Newsletters, Muskoka Lakes Association Yearbooks, reports, notes, advertisements, newspaper clippings, and photographs.

Fonds consists of material relating to biology, zoology and conservation interests and activities of Dr. John D. Detwiler from to 1919-1965. Includes documentation of Ontario fish hatchery investigations and brook trout feeding experiments. Includes correspondence, manuscripts and typescripts by himself and others, offprints and reprints, teaching materials, newspaper clippings and glass slides.

Fonds consists of materials created and accumulated by members of the Innis family including by Anne Innis Dagg, Donald Innis and Harold Innis. Includes essays, photographs, clippings, and materials relating to the Mary Quayle Innis Foundation.

Fonds consists of material relating to the career of H.N.B.Hynes, from his work as a student at the Univeristy of London in the late 1930s through his time as a professor of biology at the University of Waterloo until his retirement in the 1980s. Includes material relating to his work on stonefiles in the British Isles, his work for the British government in Trinidad and East Africa, his time at the University of Liverpool including work on river pollution, and his career at the University of Waterloo, including his sabbaticals in Australia.

Fonds includes notebooks containing field notes, ms. and ts. notes, publications authored by Hynes and by others, reports, correspondence, maps, and photographs.

Fonds consists primarily of records relating to the operation and activities of the Grand River Conservation Commission from 1938 to 1966, mostly records maintained by successive secretary-treasurers, but including some chairman's files (William Philip), and operations files. Includes a wide range of documentation, including correspondence, financial records, minutes, personnel records, reports, maps and plans and environmental monitoring records. Documentation includes construction of the Shand and Conestogo Dams, property acquisition and management, relations and interactions with municipalities and government departments at the provincial and federal levels, flood management and monitoring, implementation and management of health care, unemployment insurance, provincial and federal taxes, rental and leasing of cottage lots and other properties, reforestation and nursery operations, management of motor vehicles and other equipment.

Fonds consists of materials created and accumulated by the Architectural Conservancy of Ontario : North Waterloo Region Branch. Includes operational files including minutes and finances, project and event files and ephemera, as well as a large body of subject and clipping files on local buildings, environmental bodies, and heritage organizations.

Material created or accumulated by the Honourable Andrew Telegdi related to his life and career. Records in this fonds document Telegdi’s early career as a bistro owner and rock music promoter in British Columbia as well as his experiences as a student at the University of Waterloo. In addition, the material records his work as an Executive Director for Youth in Conflict with the Law. Most notably, the fonds documents Telegdi’s extensive political career as a City and Regional Councillor as well as a Member of Parliament. Additional records capture Telegdi’s post-political career and personal activities.