Fonds consists of the writings of Weldon Patton, a selection of newspaper clippings, correspondence, photographs, family genealogy and two case books from his medical practice, concerning men who had served in World War 1 and were seeking medical proof of disability

Fonds consists of photographs, maps, correspondence, and textual records related to John Bernard Croak and his military service.

Fonds consists of a wide variety of materials collected or created by Dr. Greg MacLeod, mostly written documents, but also videos and cassette tapes, many of which have been digitized. The written documents cover a wide range of genres such as correspondence, memos, financial reports, updates, feasibility studies, newspaper clippings, and minutes of meetings. These records have a date range beginning in the 1950's when Dr. MacLeod was in school in Sydney Mines (though there is one family document from 1899) and ending around 2004. The range of materials found here derives from his association with a number of organizations starting in the early 1970's, many of which he played a founding influence, such as Metropolitan Alliance For Development, Cape Breton School of Crafts, Island Housing Association, and the Cape Breton Association for Co Op Development, which itself would morph into New Dawn Enterprises. His social-economic interests continued with his involvement in the Tompkins Institute from its founding in 1974 and his close association with the university's Centre for Community Economic Development from its founding in 1986. Another large set of documents involves the founding of BCA Group in 1989 and its progress, and the various projects that were supported by it. Based on these associations, the fonds is arranged with the following series: Tompkins Institute; BCA Group; Centre for Community Economic Development, Audio Files, Video Files, New Dawn Enterprises, Economic Reports and Studies, and Autobiographical Materials. Each of these series (and some contain sub-series) will be composed of multiple files (some files with multiple folios) with each file containing many individual items.

Fonds consists of textual records that were created by the City of Sydney, including city reports, meeting minutes, correspondence, town histories, police reports, and legal documents. Included within the fonds are materials that provide information about Black Nova Scotians living within the city, including voting records, education reports, and town histories.

Fonds consists of letters and petitions concerning the annexation of the Colony of Cape Breton to Nova Scotia.

Fonds consist of records of the personal, professional, political and judicial life of D.D. MacKenzie.

Fonds consists of correspondence and papers related to the Fortress of Louisbourg site and to the authenticity of a painting of Louis IX, King of France; The Dream city of America (booklet); The Crescent and the Cross (essay); Unwelcome Guests of Cape Breton (the story of the convicts abandoned at Main-a-Dieu); a narrative of Baroness de St. Castine; clippings of articles by and about Almon, and pictures drawn by Almon.

Fonds consists of four series: Ella Muriel Liscombe (1913-1938), Olive Margaret Liscombe (1910-1956), Francis Gerald Liscombe (1914-1916) and Susan Kate (Howie) Liscombe (1916-1944). It includes the diaries and records of Ella Muriel Liscombe, the diary and correspondence of Olive Margaret Liscombe, the diaries and correspondence of Gerald Liscombe, and Susan (Howie) Liscombe's correspondence.

Fonds consists of personal correspondence covering subjects such as remembrances of World War II, social life in Cape Breton in the 1940's, and various Christmas cards and postcards.

Fonds consists of correspondence, legal documents, diaries, and clippings. It includes Anthony's MacMillan's wartime correspondence with his cousin, Cecilia MacMillan, in addition to other wartime correspondence.