Fonds is comprised of published and unpublished research materials pertaining to Indigenous people. Also included are correspondence, copies of emails, handwritten notes, newsletters, newspaper clippings, and photographs.

File consists of three photographs of Brian Donnellan; two photos show him looking at a map and the other is of him and an unidentified individual.

File consists of one photograph of Peter Doran on a beach with an unidentified machine.

File consists of a photograph and one image of Jack Doris (1930-2023) former Peterborough Mayor from 1990 to 1996. Photograph includes Jack Roe.

This addition to the fonds consists of diaries, manuscripts, correspondence, photographs and newspaper clippings of Dorthy Choate Herriman. The fonds includes material on the Canadian Authors Association, Carol Cassidy Coates and other poets and writers. Newspaper clippings, original illustrated layout, biographical information, author's proof and a bound copy of Mater Silva are also included in the fonds. There is also an annotated copy of editor John Garvin's Canadian Poets.

This addition to the fonds consists of articles and booklets written by Frank Morris; manuscripts and published articles by Douglas Sadler; correspondence, minutes of meetings relating to Sadler's involvment in environmental and naturalist issues and activities; correspondence relating to Teacher's College and several issues of the Young Naturalist.

File consists of two photographs of Tommy Douglas (1904-1986) former Premier of Saskatchewan from 1944 to 1961 when he resigned and became the leader of the New Democratic Party until 1971.

File consists of three photographs of Catherine Downey, former Assistant to the President from 2000-2004 and then Executive Assistant to the President from 2004-2007.

File consists of four photographs and nine images of Margaret Doxey, a professor in the Department of Political Studies from 1967 to 1991. The file includes a mock-up of her article, "A Royal Reception in Cyprus."

This fonds consists of letters between Dr. C.E. Cooper Cole and his life-long friend, Frank Morris (classics scholar and botanist) related to Ontario wildlife, wildflowers (especially orchids), camping and cottaging.

This fonds consists of records relating to the professional and personal lives of Dr. Henry Turner (Sr.) and Dr. Henry A. Turner (Jr.), both medical doctors of the Millbrook area. The medical publications, prescription day books, office records, customer account books, transaction day books, stock books, business and domestic records and invoices, glass x-rays, and correspondence depict the lives of each man respectively, spanning the years 1872 to 1936. Also included are personal and business-related records of Alice Turner, nurse, daughter of H.A. Turner (Sr.). A Farmers and Business Directory for Peterborough and the United Counties has been catalogued and removed to the Trent Collection.

File consists of three photographs of William Dray, who was a professor at Trent University from 1968 to1976. He is also known for writing Philosophy of History.

File consists of a photograph of Wyland Drew (1932-1998) leaning against a tree. Drew is known for his books Willow (1988) and Halfway Man (1989).

File consists of four photographs of Torben Drewes a professor Emeritus of Economics and a former Institutional Analyst from 1996 to 1997.

File consists of four images of James Driscoll, who was a professor at Trent University.

File consists of three photographs of Jane Dudas (1946-2008) who was a member on the Board of Governors from 1996 to 2006.

File consists of a photograph of Cathy Dueck looking at a pine tree in the snow.

File consists of a photograph of Sarah Duff, sitting in a chair while talking on the phone.

File consists of a photograph of Gloria Dunn sitting at a desk with a phone to her ear. She worked at Trent as the Telecommunications Coordinator from 1976 to 2001.