Fonds consists of records primarily originating from Herbert L. Stewart's work as a philosopher, professor, and political commentator. Records include manuscripts and typescripts, notes, scrapbooks, diaries, offprints, reports, and correspondence. One series comprises Stewart's collection of his father's sermons, notes, and correspondence.

Fonds consists of various personal records, including correspondence, scrapbooks, photographs, slides, negatives, an artifact, and legal and financial records. Some business records from Oland and Son Limited and its affiliated companies are also included.