Son of the Frederick Henry who survived the Indian attack in 1779 called "The Henry massacre" in which his grandmother and his father's infant sister Margaret Elizabeth Henry were murdered and 2 children captured.
Grandfather: Frederick Henry Birth 1748 in Germany Death 1820 in Hempfield, Mercer, Pennsylvania, USA
Grandmother: Catherine Frantz Birth 5 September 1751 in Bourges, France Death 1779 in Westmoreland, Pennsylvania
Father: Frederick Henry II Birth 1773 in Pennsylvania Death 1865 in Pennsylvania
Mother : Margaret Birth 1794 in Pennsylvania Death: unknown