1 Eustace FITZHUGH1,2,3 ( - ) [14542]. Marr William DE ROS 1268.3
| 1 | "The Ancestry of Nathan Lewis Harrison by Keith J. Harrison, 2008". |
| 2 | "Ancestors of American Presidents by Gary Bady Roberts and Julia Helen Otto, 1995". |
| 3 | "Ancestral Roots of Certain American Colonists who Came to America Before 1700 by Frederick Lewis Weis, Walter Lee Sheppard and Kaleen E. Beall, 2004". |