Subseries consists of records assembled by Rev. Andrew MacDonell, a Scottish minister who came to Canada after serving as chaplain with the Canadian Corps during World War I. These records relate to MacDonell's work, starting in 1922, to bring several hundred families from Scotland and Northern Ireland to settle in Alberta as well as his work with the Scottish Immigrant Aid Society. The records in this subseries predominantly pertain to the Clandonald settlement near Vermilion, Alberta, which MacDonell established in 1926. He remained actively interested in the Clandonald settlement well into the 1950s and the records in this subseries provide insight into life in the community and the development of the area.

Records in this subseries include MacDonell's diaries and notebooks from 1918 to 1948, maps and blueprints, pamphlets, local histories of Clandonald, scrapbooks, newspaper clippings, photographs, and correspondence. This correspondence includes correspondence with the Canadian Pacific Railway Company, correspondence with prospective settlers and applicants for settlement, maps of Clandonald and district, and correspondence pertaining to the Scottish Immigrant Aid Society.