Cây tương tác của Eleanor K. DeFoe
1914–♀ Eleanor K. DeFoe
1916–1994♂ Leon Crawford Van Ness
1891–1951♂ William John Leslie DeFoe
1889–1958♀ Blanche N. Roydhouse
1841–1910♂ Henry Roydhouse
1844–1913♀ Mary Elizabeth Bush
1816–1849♂ Thomas Henry Roydhouse
1809–1874♀ Sarah Anstiss
1772–1851♂ Thomas Roydhouse
1784–1874♀ Sarah Clark
1772–1833♂ William Anstiss
1785–1825♀ Sarah Pierson
–♂ William Bush
1883–1962♂ Joseph J. Van Ness
1889–1978♀ May Crawford Barnes