+---Harry Eberhart (23 OCT 1868-22 MAR 1939)
| +---Rebecca Young 
Carl Francis Eberhart (30 SEP 1895-08 JAN 1978)
| +---Alexander Bone
| +---Thomas Bone (ABT 1780-JAN 1844)
| | +---Rebecca Boney
| +---Robert Bone (ABT 1803-30 JUN 1871)
| | | +---William Blackmore
| | +---Frances (Fanny) Blackmore (ABT 1781-MAR 1849)
| | | +---Peter Birt
| | +---Grace Seage Burt (ABT 1755-)
| | | +---John Tregenza
| | +---Mary Tregenza (ABT 1725-)
| | +---Grace Seage
| +---Francis Richard Bone (07 AUG 1843-)
| | +---Mary Richards (BET 1803 AND 1806-03 SEP 1881)
+---Mary Elizabeth Bone (04 JUN 1868-14 JUL 1941)
+---Martha Stevens