- Bonnycastle A one-name study of the surname Bonnycastle.
- Kolthammer A one-name study of the surname Kolthammer.
- Inkster Descendants of William Inkster who emigrated from Stromness in the Orkney Islands to Ontario, Canada in 1821.
- Kinross, Graham & Reid The descendants of several families from Perthshire, Scotland:
John Kinross & Helen Dawson of Muthill,
James Graham & Agnes Finlayson of Dunblane,
William Reid & Lilias Sharp of Dunblane - McLean & McKinnon The families of Hector McLean & Mary McGillvray and Angus McKinnon & Mary McFadyen, two families from the Isle of Mull, Scotland to Ontario, Canada
- Oliver The Oliver family who emigrated from Devon, England to Ontario, Canada.
- Fernee & Godart The Fernee and Godart families of London, England.
- Wright & Cox The ancestors and descendants of John Wright (1852-1903) and his wife Emma Mary Susannah Cox (1858-1944) of London, England. Emma and children emigrated to Canada. Ancestor's surnames include Beaton, Buckley, Chambers, Cox, Hitt, Stocker, Wright.
- Mark Primary surnames in this study include Suydam, Van Zandt, Teal, McLoughlin, Quinn. Locations include Michigan, Ohio, New Jersey. Another branch is centered in New Castle, Pennsylvania and includes Kennedy, Catterson, Morrison, Houk, Thompson, Paisley, and Rapp families. A German/Ohio branch includes Hoffman, Stoll, Kreckel, and Boersch.
- Wendy One part of this study is centered in Perry County, Illinois, and includes Collins, Wilson, James, Presswood, and Keen families.