Fonds consists of correspondence, including letters home to his wife during his time overseas in WWII; sermons, extending over half a century as well as many dating from his time as a Navy Chaplin; writings; research notes and lectures, from his time at Queen's University as an educator; photographs; subject files, both personal and professonial; prayers; and diaries, dating from 1921 until 1984.
The fonds consists of photographic negatives along with some photographic prints and slides which include photographs of news events, publicity and aerial shots along with pictures of interest to Queen's University. The largest part of this fonds is made up of portraits of Kingstonians, many prominent, and Queen's University Graduates.
The fonds consists of correspondence with family members and other local writers, some publications, clippings about topics of interest to Robb and material about the lore, traditions and language of native peoples particularly of Ontario and upper New York State; guest book for visitors at Abbey Dawn; and a copy of a film entitled, "The Little Canadian", starring Wallace Havelock Robb, as 'The Deacon'.
The fonds consists of journals describing farm life; including sowing, harvesting, cattle breeding, the buying of articles from the general store and home remedies.
The fonds consists of photocopies of a series of diaries containing an almost daily holograph record of the activities of the farm near Brockville, Ont., and surrounding district.
Collection consists of a photograph of the "First Officers Riverdale Star #539 Organized May 10th 1923 Toronto"; and a pen and ink, line drawing of Ramsay MacDonald.
The fonds consists of correspondence, articles, notebooks and photographs from the earlier period of Gregory's career, involving the Weekly Sun and the Continental Union Movement, and from his later years having to do with public affairs. There is no correspondence of a purely personal nature. Noted personages who are well represented include Goldwin Smith, Henri Bourassa, Sir Wilfred Laurier and Mackenzie King. There is a large number of pamphlets, addresses and publication, relating specifically to commercial union, continental union, and Canada First; material relating to Goldwin Smith; a typewritten draft of Gregory's projected autobiography, which he never completed; as well as several letter-books, scrapbooks and diaries.