Subseries A consists of records related to projects that Harold Spence-Sales worked on as an urban planner and consultant. The files in subseries A contains records that are created and used while an urban planner works on urban development projects.

Includes notes, sketches, clippings and photographs.

Subseries A consists of financial records that pertain to Harold Spence-Sales professional activities; contracts, estimations for projects, service fees, business expenses, grants and business statements.

Subseries A also contains of records that are of an administrative nature that are unrelated to financial expenses but are related to professional responsibilities. Administrative records contain publicity materials, research, correspondence and various kinds reports that were sent to Harold Spence-Sales throughout the course of his work as an urban planner that he may not have directly contributed to.

Subseries A consists of records that pertain to family events, home life and genealogy. It Includes many photographs of events such as birthday parties and weddings (possibly Harold Spence-Sales' and Mary Filer's wedding). Also includes photographs of the couple's early years together and their home art and sculpture collection.

Subseries A consists of records related to Harold Spence-Sales activities within professional associations: the Ontario Professional Planners Institute, the Community Planning Association of Canada, the Corporation of Urbanites Quebec, the Quebec Society of Professional Town Planners, the Royal Architectural Institute of Canada, the Town Planning Institute of Canada and the group Lambda Alpha International. Subseries A also encompasses records regarding events that Harold Spence-Sales attended. Events such as, McGill School Architecture, celebrations, award ceremonies as well as various professional conferences and lectures.

Includes correspondence, notes , clippings, sketches, and a scrapbook: photographs, postcards, collages.

Subseries B consists of records that are graphic in nature; primarily slide-transparencies, photographs and negatives.

The photographic materials within subseries B are primarily aerial photographs and photographs of landscapes, land formations and geographical features. Harold Spence-Sales likely used the photographs to help him understand the geographic areas for the urban development projects that he worked on.