Benjamin Snell (ABT 1794-)
| +---John Cundy
| +---Solomon Cundy (ABT 1690-DEC 1759)
| +---John Cundy (ABT 1722-)
| | | +---David Pearce
| | | +---Isaack Pearce (ABT 1666-)
| | | | +---Alice ? 
| | +---Alice Pearce (ABT 1698-NOV 1739)
| | +---Alice ?
+---Alice Cundy (05 AUG 1751-)
| +---James Trethewy (ABT 1517-ABT 1573)
| +---Richard Trethewy (BEF 1550-)
| +---Robert Trethewy (BEF 1575-DEC 1623)
| | | +---William Hawkins
| | +---Joan Hawkins (ABT 1530-)
| +---Thomas Trethewy (ABT 1596-ABT 1664)
| | +---Ann Burgess (-ABT 1637)
| +---Robert Trethewy (AFT 1642-ABT 1690)
| | | +---William Jolley
| | +---Isabel Jolley (ABT 1606-)
| +---Charles Trethewy (AFT 1673-DEC 1735)
| | | +---John Scawen
| | | +---Trehane Scawen (ABT 1614-)
| | | | | +---John Trehane
| | | | +---Elizabeth Trehane
| | +---Dorothy Scawen (ABT 1653-)
| | | +---Gregory Arundell (-ABT 1653)
| | +---Dorothy Arundell
| | +---Edith Crane (-ABT 1666)
| +---John Trethewy (ABT 1700-)
| | +---Jane Williams (BEF 1683-)
+---Jane Trethewy (ABT 1723-BEF 1799)
| +---William Perkin (-1688)
| +---John Parkin
| | +---Mary ?
+---Philadelphia Parkin (ABT 1694-MAY 1783)