Collection consists of an inventory of land locations for early settlers and inhabitants of Ops Township from the initial survey of the township in 1825 to 1872. It includes census information and assessments of households, various voter's lists, many Ops Township documents and one map for the 1839 Assessment Roll. The collection also includes a variety of cookbooks, recipes, food preparation manuals for specific cooking devices, and research notes.

This fonds consists of research papers and notes pertaining to the publication of the Peterborough Historical Atlas in 1975 and the subsequent activities of the Peterborough Atlas Foundation.

This collection consists of records collected by G. Wilson Craw such as school histories, Peterborough County; Barnardo's Canadian Homes Almanac 1901; a list of Peterborough Utilities Commissioners 1902-1965; biographies of Peterborough residents; deeds and mortgages; North Monaghan voters list 1883-4; 76 photographs of industries, schools and churches and sporting groups, as well as a history of Springfield, North Monaghan.

The microfilms are copies of the decennial nominal census for Peterborough County from 1871. The microfilm also includes census records for parts of Northumberland East, Prince Edward and Hastings Counties.