This fonds consists of correspondence, research notes and original documents which were collected by Professor David Macmillan during his research. Items such as voters' lists for Victoria County, Ontario and a series of broadsides advertising land in Victoria County; documents from the Hudson's Bay Company, East Indies; minutes from the Barbados Board of Legislative Council, a Sydney Australia Company, and the Sydney Australian Committee of the New Steam Company; and a number of reproduction engravings and prints are included in the fonds. Also included in the fonds is a copy of Macmillan's 1964 Ph.D. thesis: "The Scottish Australian Connection..." and assorted pamphlets relating to New South Wales.

Collection consists of miscellaneous photographs, engravings, posters, broadsides, and a newspaper supplement.