In 1971, shortly after the October Crisis in Quebec, Hare produced a work on the Lower Canadian Rebellion, also known as the Patriot's War. In 1973, Hare and Jean-Pierre Wallot, the former Head of the National Archives of Canada, were the first to be awarded the Marie Tremaine Medal by the Bibliographic Society of Canada (after Marie Tremaine herself) for their work on Canadian Imprints from 1801 to 1840.