(ABT 1791-12 APR 1827)
+---Edwin Henry Bickerstaff Wesson (26 SEP 1820-18 MAR 1908)
| +---Mary Ann Pengilly 
William Thomas Pasco Wesson (14 JUN 1855-12 JAN 1888)
| +---William Polkinghorne (ABT 1801-)
+---Elizabeth Jane Polkinghorne (ABT 1827-09 JUL 1890)
+---Elizabeth Ould (ABT 1806-)