This archive contains the research papers for this project, also proof copies and post-publication addenda, as well as of other shorter works published by the CCS in Sheetlines, and as independent booklets. There is a substantial body of material for a second full length monograph, on Ordnance Survey half-inch maps, which was left incomplete at his death. There are active but unpublished listings of several other Ordnance Survey map series, and much material relating to map cover classification. There are correspondence files, in particular both sides of his correspondence (1982-1993) with Richard Oliver, wherein many themes in the largely unexplored territory of Ordnance Survey research, much of which would evolve into the published work of both men, were developed. Further details of his life and work appear in the obituary in Sheetlines 38.