+---James Tunks (29 AUG 1849-02 NOV 1915)
| +---Clara Ellen Hammond 
Daisy Tunks (30 MAY 1892-28 APR 1919)
| +---John Chapman
| +---John Chapman (05 APR 1800-28 DEC 1871)
| | +---Grace Parson
| +---John Henry Chapman (18 JUL 1832-22 JUN 1911)
| | | +---John Pollamounter
| | | +---Robert Pollamounter (ABT 1717-)
| | | +---John Pollamounter (ABT 1757-23 JUN 1841)
| | | | +---Catherine Cole
| | +---Mary Ann Pollamounter (02 MAY 1803-23 FEB 1858)
| | | +---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
| | | +---Bartholomew Trethewey (ABT 1735-)
| | | | +---Joan Woon (-1735)
| | +---Elizabeth Trethewy (ABT 1763-)
| | +---Sarah Laskey
+---Harriet Nicholls Chapman (29 MAR 1856-28 MAY 1936)
| +---James Nicholls
+---Grace Nicholls (ABT 1837-13 JUN 1913)
+---Sarah Sinclair