Collections include textual, graphic, and MIS records created by de Forest over his career, largely pertaining to his time as a professor in the Faculty of Architecture. Also includes a collection of published materials, including architectural design journals.
The Constance Officer fonds includes the following series: correspondence (1966-1974); invitations (1962-1969); scrapbook (1956- 1989); biographical information (1957-1979); photographs (1953-1966); two thimbles; and a needlecase.
The David Yeddeau fonds includes the following series: newspaper and magazine articles (1941-1985); obituaries (1992); writings [1949]; biographies; and photographs (1942-1979).