(-BEF 1851)
+---James Jacka (14 APR 1823-)
| | +---Stephen Sincock
| +---Elizabeth Sincock 
(ABT 1795-)
| +---Hannah Secombe
Thomas John Jacka (ABT 1871-)
+---Eliza ? (ABT 1836-)
(-BEF 1851)
+---James Jacka (14 APR 1823-)
| | +---Stephen Sincock
| +---Elizabeth Sincock (ABT 1795-)
| +---Hannah Secombe
Thomas John Jacka (ABT 1871-)
+---Eliza ? (ABT 1836-)