Michael Rock
| +---Edward Pearce (ABT 1895-)
| +---Edward David Pearce (16 NOV 1917-)
| | | +---Philip Hancock (ABT 1840-BEF 1871)
| | | +---Frederick Hancock (01 NOV 1868-26 AUG 1932)
| | | | +---Susan Hooper 
(ABT 1840-)
| | +---Mildred Millicent Hancock (08 AUG 1897-18 AUG 1990)
| | | +---Thomas Hancock (1809-ABT 1850)
| | | +---Thomas Henry Hancock (06 MAR 1836-03 OCT 1893)
| | | | | +---William Nicholls
| | | | | +---John Nicholls (28 SEP 1745-)
| | | | | | +---Elizabeth ?
| | | | | +---Thomas Halls Nicholls (26 SEP 1789-1845)
| | | | | | | +---Aaron Shrout
| | | | | | +---Mary Shrout
| | | | +---Ann Nicholls (17 MAR 1812-07 MAR 1893)
| | | | | +---Anthony Trudgyan (-1737)
| | | | | +---William Trudgian (ABT 1695-SEP 1752)
| | | | | | +---Elizabeth Lawrey (-1738)
| | | | | +---Samuel Trudgian (ABT 1725-01 MAY 1808)
| | | | | | | +---William Truscott
| | | | | | +---Jane Truscott (ABT 1697-MAY 1770)
| | | | | +---Anthony Trudgian (ABT 1741-14 JAN 1829)
| | | | | | | +---Anthony Trudgyan (-1737)
| | | | | | | +---Anthony Trudgian (ABT 1699-1746)
| | | | | | | | +---Elizabeth Lawrey (-1738)
| | | | | | +---Elizabeth Trudgian (ABT 1725-13 JAN 1799)
| | | | | | +---Margaret Stone (-1739)
| | | | +---Honor Trudgian (ABT 1788-)
| | | | | +---James Trethewy
| | | | | +---Richard Trethewy (ABT 1665-JAN 1741)
| | | | | +---Richard Trethewy (ABT 1700-ABT 1764)
| | | | | | +---Ann Martyn (ABT 1666-JUN 1738)
| | | | | +---Richard Trethewy (ABT 1728-21 APR 1818)
| | | | | | | +---Humphrey Harris
| | | | | | | +---Gilbert Harris (ABT 1637-)
| | | | | | | +---Gilbert Harris (ABT 1665-)
| | | | | | | | | +---Richard Wills
| | | | | | | | +---Jenifer Wills (ABT 1632-)
| | | | | | | | +---Christian Best
| | | | | | +---Jenifer Harris (ABT 1696-1780)
| | | | | | | +---Thomas Hockin (-ABT 1607)
| | | | | | | +---John Hockin
| | | | | | | | +---Elizabeth ?
| | | | | | | +---John Hockin
| | | | | | | +---John Hockin (ABT 1616-DEC 1696)
| | | | | | +---Elizabeth Hockin (ABT 1658-)
| | | | | | +---Blanche ? (-ABT 1699)
| | | | +---Mary Trethewey (ABT 1754-AUG 1841)
| | | | | +---David Warne
| | | | | +---John Warne (ABT 1656-)
| | | | | | | +---Henry Arthur
| | | | | | | +---Gregory Arthur (ABT 1599-)
| | | | | | +---Honor Arthur (ABT 1632-)
| | | | | +---John Warne (ABT 1700-)
| | | | | | | +---Richard Rounsevall
| | | | | | | +---Gregory Rounsevall (ABT 1617-)
| | | | | | | | +---Jane ?
| | | | | | +---Jane Rounsevall (ABT 1664-)
| | | | | | +---Mary Olver
| | | | +---Mary Warne (ABT 1730-30 MAY 1786)
| | | | | +---Johannes Doketon
| | | | | +---John Doketon (BEF 1459-)
| | | | | +---Thomas Doketon (BEF 1490-)
| | | | | +---Richard Docton (-JAN 1571)
| | | | | | +---Alicia Ash (BEF 1490-)
| | | | | +---Thomas Docton (-AUG 1638)
| | | | | | +---Thomasin Saunder
| | | | | +---John Docton (ABT 1600-JUN 1650)
| | | | | | +---Susanna (Susan) Babacom (-DEC 1634)
| | | | | +---John Docton (ABT 1636-)
| | | | | | | +---John Arundell of Lanherne
| | | | | | | +---Thomas Arundell of Lanherne
| | | | | | | | | +---Gerald Danet
| | | | | | | | +---Elizabeth Danet
| | | | | | | +---Thomas Arundell (-AFT 1620)
| | | | | | | | +---Elizabeth Trengove of Nance
| | | | | | +---Cecilia Arundell (-MAR 1639)
| | | | | | +---Rachell Monp'son
| | | | +---Honor Docton (ABT 1700-)
| | | | | +---Thomas Tregeare
| | | | | +---Henry Tregeare (ABT 1609-)
| | | | +---Mary Tregeare (ABT 1655-)
| | | | +---Mary ?
| | +---Isabella Hancock (15 JUL 1868-)
| | | +---Thomas Sturtridge (1811-)
| | +---Eliza Sturtridge (11 JUN 1838-06 APR 1880)
| | | +---Philip Trethewy (-JUL 1733)
| | | +---Richard Trethewy (ABT 1720-)
| | | | +---Isabel Beaubery (-FEB 1732)
| | | +---Philip Trethewy (ABT 1765-)
| | | | +---Ann Jewell
| | +---Susanna Trethewy (ABT 1813-)
| | | +---Robert Varcoe
| | +---Grace Varcoe (ABT 1774-)
| | +---Joan Benny
+---Margaret Louise Pearce
+---Dorothy McIvor