Fonds consists of three record books. Two of these are ledgers that date from the period that Thomas was the manager of Consolidated Optical Co. They offer a rare glimpse of daily operations of a Canadian instrument making firm. The ledgers have records of purchases, contacts, receipts, and materials dating from 1914 to 1920. The other record book is a surveying class notebook that is undated.

This collection consists of correspondence, reports, lists, ballots, newsletters, and publications created by Canadian flower societies.

The item is a promotional ink blotter for the F. G. Cotter & Co. in Port Hope, 1940.

Collection consists of memorabilia and material pertaining primarily to the activities of the Whitby Dunlops during the team's active years from 1957 to 1959. There is also material which relates to anniversaries and other events in the years following the team's dissolution in 1960. Collection is comprised of 8 series including: Programs, Publications, Ephemera and artifacts, Team information, Events, Diary of Kay Irwin, Postcards and photographs, and Video.

This collection consists of hand-written notes; notebooks; programmes; plant lists; plant records; maps; drawings; measurements; tour scripts; photographs; slides; postcards; and photographs.

The drawings were made in 2020 and 2021. The family's first item contributions to CDIC was in July 2020, and an additional one in 2021.