This fonds consists of publications, pamphlets, correspondence, journals, and reports concerning the International Peace Movement, socialism and communism.

This collection consists of technical plans and details of the Deloro mining processes, labour relations and union papers, medical information concerning arsenic poisoning, historical material regarding Deloro and the village of Marmora, maps, and plant photographs, layouts, and site plans.

Collection consists of employee records, plant and engineering operations, and photographs of Deloro village and the Deloro mining and smelting site.

This fonds consists of letters from a servant girl, Isabella Brownlie in Otonabee to her brother Claud in Scotland. After 1845, the letters are from Isabella and her husband James Miller. The fonds also contains two photographs, one of Isabella's brother, Claud Brownlie, with his wife, Elizabeth [Kendrick], and the second of Claud Brownlie alone, as well as a diploma for Thomas Menzies Miller, 1891.

This collection consists of thirty-five labour posters printed in London, England and Budapest. There are also three charter certificates, one dated 1919, and two dated in 1937, which were issued to the Canadian Brussels Carpet Weavers Benefit Association and to the United Textile Workers Federal Union, both of Peterborough. Also included in the collection is a photograph entitled "Delegates to Twelfth Convention of the P.M.L. of N.A."

Collection consists primarily of photocopies and emails with information pertaining to various aspects of Peterborough's history, from both the city and the county. Brief history of the town of Lakefield is also included.

Fonds consists of correspondence, legal and financial documents, newspaper clippings, photographs and memorabilia relating to the Leggott family of Lakefield Ontario.

This fonds consists of black and white photographs of a men's work camp at Ragged Rapids, located near Orillia Ontario. There are also photographs are of Norwood, Birdsall's Landing, and Young's Point.

This fonds consists of the working papers of R.G. Barclay including correspondence, notes and drafts relating to a history of unemployment insurance which was written by Barclay; correspondence, memoranda, press clippings regarding guaranteed annual wage plans and health insurance; correspondence and clippings regarding pensions; miscellaneous correspondence and papers; and photographs of Unemployment Insurance Commission staff and landscapes. The fonds also includes correspondence, memoranda, memorabilia and photographs regarding the "53 Varieties".