Fonds consists of materials created and accumulated by Bill Thomson relating to his professional life. Includes materials relating to projects that he consulted on, materials relating to teaching responsibilities at the University of Waterloo, and speeches given at a variety of events.

This collection, donated to the University of Waterloo in 1988 by the family of the late Rosa Breithaupt Hewetson Clark and Spencer Clark, includes family papers from three families, the Breithaupt family, the Hewetson family, and the Clark family; records from the Guild of All Arts in Scarborough, Ontario, founded by Rosa Breithaupt Hewetson Clark and Spencer Clark; and several smaller collections acquired by the Breithaupt family and by Spencer Clark. The personal library of Spencer Clark, which includes many books, periodicals, government documents, and ephemeral items, was donated together with the archival collections, and is particularly strong in the fields of urban planning, architecture, and Canadian art.

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

Special Collections & Archives holds a variety of town guides from cities across the UK. Most significant urban centres in the British Isles are represented, and there is a comprehensive collection of guides to places which became Greater London in 1965.

The guides can provide a benchmark for assessing the very substantial changes which have affected British urban places in the past 60 years, and may be of interest to researchers in a variety of disciplines.

The town guides vary in size from a slender brochure of 30 pages for a small Urban District to large-format volumes of over 300 pages for a major City and County Borough such as Liverpool.