Marsh was the son of John Duvall and Anne Fowler. The date and place of his birth have not been found.
Marsh Mareen Duvall
John Duvall (1712-1791)
Mareen Duvall (1680-1741)
Mareen Duvall (1630-1694)
Susannah Brashears (c1655-1692)
Elizabeth Jacob (1683-1752)
John Jacob (c1633-1726)
Ann Cheney (<1691-1730)
Anne Fowler (c1715-?)