Materials used or accumulated by Robert "Bob" Hanselman during his time as a student at the University of Waterloo. Includes photographs of the University's first buildings, a slide rule, a book with mathematical tables used by Hanselman in his courses, two yearbooks, and Hanselman's briefcase.

Fonds consists of records accumulated by Marcel Pequegnat in his professional roles as superintendent of the Kitchener Water Commission, vice-chairman of the Grand River Conservation Commission, and president of the Arthur Pequegnat Clock Company; and records collected by him relating to the history of these bodies.

Records relating to the Kitchener Water Commission and its predecessor, the Berlin Water Works Company, span from ca. 1887 to 1961, and are mainly from 1898 to the 1930s. Records relating to the Grand River Conservation Commission cover the period from 1939 to 1943. Includes correspondence, contracts and other legal documents, reports, minutes, architectural and technical drawings, photographs and other visual material, press clippings, ephemera, and advertising material.

Fonds consists of correspondence to Lester Paige Breckenridge from Anson Stokes, William H. Taft, A.T. Hadley and Hiram Bingham, dating from 1912 to 1921. Three of the letters have a Yale University header and are addressed to Breckenridge in New Haven, Connecticut.

List of correspondence:

• Anson Stokes, New Haven, Conn. - November 1912
• William H. Taft, New Haven, Conn. - March 19, 1918
• A. T. Hadley, Yale University - May 16, 1918
• Hiram Bingham, New Haven Conn. - December 1, 1921

Fonds consists of materials relating to the life and career of Jerzy Pindera, with a specific focus on his time in World War II and as a prisoner of war in Sachsenhausen concentration camp during the Holocaust. Includes correspondence, articles, war records and short stories, as well as tapes of interviews conducted with Pindera.

Large quantity of maps, drawings etc., largely unlisted at this time.

Materials relating to the history and operations of Electrohome Limited.

One photograph album kept by a member of the Canadian Society of Civil Engineers documenting a Canadian west coast trip through the provinces of Manitoba, Saskatchewan, Alberta and British Columbia. The 120 silver gelatin photographs show images of interest to the engineers including elevators, irrigation works, mines, smelting works and power plants as well as the scenery of the Rocky Mountains and local people and wildlife. Of particular note is the fact that the party contained numerous women, not all of whom were wives. The front of the album has a pastedown listing all participants in the tour and the back a pastedown listing captions for all of the images.