The Thomas K. Fleming research collection consists of materials related to the settler colonial history of British Columbia, and more broadly, the Pacific Northwest and Canada. Record types include correspondence, newsletters, press clippings, printed materials, notes, maps, legal documents, as well as Fleming`s stamp collection and associated records. Historical records in the collection include content primarily from the nineteenth to early twentieth century on such subjects as forestry, travel, commerce, and postal history. The collection has been arranged into two series: Historical Records and Research Subject Files series, and Stamp Collection and Related Materials series.

The fonds reflects the efforts of Bob Williams’ political and business career. Records in the fonds relate to Williams’s various roles: teacher, M.L.A., community planning consultant, Minister, chair of ICBC, and Secretary of Crown Corporations. As such, the records relate both to Williams’ personal career as well as British Columbia's governmental systems of resource management, transportation, forestry, energy, housing, and recreation. Correspondence is featured throughout the fonds; other records types include reports, studies, speeches, notes, legal agreements, bills, acts, notebooks, daily journals, travel memorabilia, presentation materials, photographs, VHS tapes, audio cassettes, optical discs, news clippings, scrapbooks, and transcripts of interviews. The fonds is comprised of four series; Alderman and Member of Legislative Assembly records, Ministry of Forests, Lands, and Water Resources Records series, Crown Corporations Records series, and Business, Personal, and Academic Records series.

The Alderman and Member of Legislative Assembly Records consists of material related to Williams' roles as Alderman of the City of Vancouver and later as M.L.A. for East Vancouver. Records include letters, faxes, telegrams, newspaper clippings, reports, speeches, notes and other related material.

The Ministry of Forests Lands and Water Resources Records series relates to Williams's time spent on the provincial cabinet working under the government of Dave Barret. Records consist primarily of correspondence, especially between Williams and major corporations and individuals in the forest industry. Other records include reports, studies, news clippings, bills and acts, speeches, presentation materials, and transcripts.

The Crown Corporations records series is comprised of documents stemming from Williams' activities as chair of ICBC, and his work in the Crown Corporations. Many records relate to the construction of Surrey City Centre. Record types include correspondence, reports, legal documents, and news clippings.

The Business, Personal and Academic Records series contains records related Williams’ business career, personal memories and diaries, pictures and travel memorabilia, and his experiences meeting other politicians. Record types include planning consultant studies, correspondence, interviews, and materials from his academic career including course outlines and reading lists.