(ABT 1791-12 APR 1827)
+---Edwin Henry Bickerstaff Wesson (26 SEP 1820-18 MAR 1908)
| +---Mary Ann Pengilly 
+---Edward John Wesson (04 AUG 1860-10 JUN 1924)
| | +---William Polkinghorne (ABT 1801-)
| +---Elizabeth Jane Polkinghorne (ABT 1827-09 JUL 1890)
| +---Elizabeth Ould (ABT 1806-)
Beatrice Melville Wesson (27 OCT 1881-17 MAY 1951)
| +---William Trembath
+---Eliza Trembath (06 OCT 1857-18 DEC 1923)
+---Eliza Inch