+---Henry Best (ABT 1798-)
| +---Elizabeth Brokenshire 
+---George Best (ABT 1848-1921)
| | +---Thomas Dyer
| +---Jane Dyer (ABT 1805-)
| +---Susan Giles
+---Henry Thomas (Tom) Tellam Best (01 DEC 1871-1941)
| | +---William Tellam (ABT 1754-NOV 1801)
| | +---Anthony Tellam (ABT 1785-)
| | | | +---John Rowe
| | | +---Elizabeth Rowe (ABT 1751-JUN 1829)
| | | +---Honour Pascoe
| | +---Richard Tellam (ABT 1826-)
| | | | +---John Nicholls
| | | +---Jane Nicholls (ABT 1787-JAN 1867)
| | | +---Jane Row
| +---Jane Tellam (ABT 1850-1916)
| | +---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)
| | +---Thomas Trethewey (ABT 1759-11 JUN 1846)
| | | | +---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 ?
| | +---Samuel Trethewey (ABT 1793-14 MAR 1875)
| | | | +---James Trethewy (ABT 1517-ABT 1573)
| | | | +---Thomas Trethewy (-ABT 1616)
| | | | +---Bartholomew Trethewy
| | | | +---Bartholomew Trethewy (-1666)
| | | | +---Thomas Trethewey (-ABT 1692)
| | | | +---Bartholomew Trethewy (ABT 1667-MAY 1755)
| | | | +---Walter Trethewy (ABT 1702-NOV 1751)
| | | | | | +---Robert Trethewey (-JUL 1676)
| | | | | | +---Walter Trethewey (-1710)
| | | | | +---Elizabeth Trethewey (ABT 1670-AUG 1743)
| | | | | +---Mary Brewer
| | | | +---Humphrey Betty Trethewey (ABT 1731-JUL 1769)
| | | | | +---Joan Woon (-1735)
| | | +---Jane Trethewey (01 OCT 1764-05 JUL 1846)
| | | | +---Richard Hendra
| | | +---Blanche Hendra (ABT 1734-JAN 1775)
| | | +---Jane Murton
| +---Maria Trethewey (ABT 1826-)
| +---Maria Snell (-NOV 1837)
Mabyn Best
+---Annie Amelia Lowry Hamley (ABT 1870-1944)
| +---George Hamley (ABT 1810-)
+---Amelia A Hamley (ABT 1839-)
+---Nancy ? (ABT 1810-BEF 1881)