Subseries C consists of side-transparencies. The slide-transparencies subseries C are distinct from the loose and eclectically gathered slide-transparencies in "Series 3 subseries B photographs and slides". The slide-transparencies that have been cataloged in Subseries C are labeled by project and have been placed in slide containment boxes or carousel wheels in a meticulous order by Harold Spence-Sales.

The images in the slide-transparencies are primarily of aerial photographs and geographical areas.

Subseries B consists of reports. The reports in subseries B were often written by Harold Spence-Sales sometimes in collaboration with colleagues and urban planning professionals in order to document the steps required to bring an urban development project to life.

The reports discuss geography, sediment analysis, statistics, safety, logistics, environmental concerns, engineering and other topics that need to be considered in order to bring urban-architectural development projects from the idea and preparation phases to reality.

Subseries C consists of copies of publications that Harold Spence-Sales authored independently and publications that he co-authored with John Bland.

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.

Subseries D consists of plans, drawings and blueprints that Harold Spence Sales used for personal or professional projects, but they have not been identified.

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.

Subseries G consists of records dealing with end of life matters, including wills and financial bequests (Box C-97-58), and records related to Harold Spence-Sales death; obituaries, tributes, memorial and funeral service information, DVDs, death certificate, cremation certificate, last will and testament, and correspondence between Mary Filer-Spence-Sales and friends and family regarding Harold’s death (Boxes C-97-60 and C-97-61). Box C-97-62C contains notebooks related to Harold Spence-Sales's care towards the end of his life .

Subseries G also includes eleven notebooks and two folders. The notebooks and folders date between 1999 and 2004; they were written by Harold Spence-Sales nurses and care takers. The notebooks document Harold Spence-Sales health, dietary and medical issues (Boxes C-97-60 and C-97-61).

Subseries D consists of a collection of magazines and periodicals that Harold Spence-Sales curated. The topics of the magazines and periodicals pertains to issues in architecture and urban planning.

Many of the magazines and periodicals feature Moshe Safdie; particularly the ones in box C-97-46.

Subseries E consists primarily of records that Harold Spence-Sales used to work on personal or profession projects that have not been identified. There is one project in subseries E that has been well documented; the 1107 W. 7th Avenue Vancouver project.

1107 W. 7th Avenue Vancouver was Harold Spence-Sales and Mary Filers home and personal art studios.

Subseries B consists of personal notebooks, calendars, and agendas. Many of these contain sketches, drawings, and handwritten notes. Notebooks and agendas appear to have been used to record thoughts and personal observations. The sketches and drawings are mostly architectural in nature. The agendas also record some personal appointments.