(ABT 1730-22 MAY 1807)
+---John Rescorle (16 MAY 1757-22 MAY 1807)
| | +---William Testick (25 APR 1696-)
| +---Margery Testick 
(14 MAY 1732-08 JUN 1794)
| +---Elizabeth Seccombe
+---William Rescorle (09 OCT 1791-11 FEB 1855)
| | +---William Testick (25 APR 1696-)
| | +---William Testick (ABT 1735-)
| | | +---Elizabeth Seccombe
| +---Mary Testick (06 MAR 1763-19 DEC 1815)
| | +---Nicholas Trevithick (ABT 1618-FEB 1698)
| | +---Thomas Trevithick (ABT 1664-MAR 1723)
| | | | +---Thomas Couch
| | | +---Peternell Couch (ABT 1640-DEC 1696)
| | | +---Elizabeth ?
| | +---Thomas Trevithick (ABT 1697-FEB 1771)
| | | | +---John Peters (ABT 1639-)
| | | +---Mary Peters (ABT 1665-)
| | | +---Marrian Spry (ABT 1643-)
| +---Susanna Trevithick (ABT 1740-)
| | +---John Bennett (ABT 1680-JAN 1717)
| +---Mary Bennett (ABT 1706-1742)
| +---Pricilla ? (ABT 1680-)
Ann Dodge Rescorle (31 AUG 1834-)
| +---John Vivyan (ABT 1770-)
+---Grace Vivyan (03 APR 1792-MAY 1854)
+---Grace ? (ABT 1771-)