The collection consists of architectural plans and drawings for construction projects (primarily grain elevators) in Ontario and Manitoba.

Fonds consists of documents, technical drawings, photographs, clippings, reprinted articles on Massey Ferguson or Massey Harris, a badge, a pin, a business card, and some drafting tools. There are also some internal newsletters and publications from Massey-Harris in Australia. The archives show that Windsor seems to have been involved in the design of model 37 combine and that he worked in Canada, Australia, and France.