This series is composed of general files relating to conferences, symposiums, meetings of professional associations and lectures as well as files on specific events. The general files which are arranged chronologically contain mainly correspondence, agenda, commentaries by Prof. Lemon on papers and itineraries. They document his active participation in the field of historical and urban geography.
Files on specific meetings such as the Historical Urbanization in North America Conference (1973), the Ontario Historical Geographers Conference (1976), Urban History Conference (1982) and the Association of American Geographers Meeting (1990), contain the types of records listed above as well as notes, drafts of papers presented by Prof. Lemon and, often, correspondence relating to the planning of these meetings.