Forfædre til John Fosdick Clarkson op til Clara C. Coryell
Generation 1
1 -
John Fosdick Clarkson
Generation 2
3 -
Kathleen Eleanor Burk
Generation 3
6 -
Daniel Francis Burk
1849-1917
Generation 4
13 -
Clara C. Coryell
1824-1895