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.

This fonds consists of primary research material and the manuscript and photographs for Harley R. Cummings' book, "Early Days in Haliburton". The fonds also consists of correspondence, including letters from the Honorable Leslie Frost, photographs, maps, and an original 1863 surveyor's diary for Eyre Township. Also included are the C.R. Stewart diaries, dated 1902-1904. C.R. Stewart (1826-1905) was resident agent for the Canadian Land and Immigration Company and was the first settler in the Village of Haliburton. In his diaries he refers to Colonel Samuel Hughes and Mossom Boyd. Stewart's son, C.E. Stewart (1851-1921) was editor of the "Bobcaygeon Independent". The fonds also includes several historical papers and publications written by Cummings and others.