The earliest known ancestor was David Leist (ca. 1734-1802). He lived in Pennsylvania and was the father of Andrew Leist (1755-1821) who was also born in Pennsylvania. He married Elizabeth Landman and they were the parents of thirteen children. They both died in Ohio. Descendants live in Ohio and neighboring states.

The progenitors of the Stewart family and of the three allied families of Isom, Guess, and Wilson are: Leroy W. Stewart (1792-ca. 1865), Charles Isom (1775-1855), Henry Guess (1764-1825), and John Wilson (1730-1800).

The bibliographic holdings of family histories at the Library of Congress. Entries are arranged alphabetically of the works of those involved in Genealogy and also items available through the Library of Congress.