Fonds consists of maps and plans of the Ottawa and Haliburton areas, time-books of Bronsons and Weston logging firm, and photographs of the building of a railway, and of the Haliburton area. Included also are research material and manuscripts relating to books which Harley R. Cummings wrote about schools in the Ottawa area, and on the history of Haliburton. Included are notes on John Strachan and a transcript of his diary. The fonds also includes several genealogical charts of the MacCallum family.

File contains an original hand-coloured Dickson Mill property plan. Registered in the Register office Peterborough the 31st December AD 1867. Scale - 100 feet per inch. It is framed with acid-free materials; framed dimensions 66 cm (h) x 104.5 cm (w).