This fonds consists of minutes, correspondence, balance sheets, and financial records of the Gordon Mackay Company, its subsidiaries and some of its officers. It includes photographs, maps, plans, annual reports and newsclippings.

This collection consists of assorted documents relating to Cobourg and vicinity. It includes marriage certificates, correspondence, indentures, opera house programmes, choral and church programmes, an oil sketch by Alice M. Duncan, and photographs and postcards. It also includes a copy of the "Cobourg World", April 8, 1898 Volume 25, and No. 43.

This collection consists of 33 lithographic print plates, mounted on wood, of photographic negatives of the fire brigade, Peterborough City Council (1925, 1933 and 1941), the waterworks, the first fire engine, and the Aylmer Street station. There are also print plates of photographic negatives of fires at various buildings in Peterborough including Quaker Oats, the Boston Cafe, the Salvation Army, and the Peterborough Canoe Company.