Jones Family History Australia

Tracing Jones Family History.

Looking for Ancestors of Thomas and Margaret JONES (BRASILL). They were married at St. Mary's Cathedral in Sydney in 1834.

They have at least two children - Louise and Thomas Rolstan.

Daughter Louise was born 1832.
Son Thomas was born Lachlan River but have not been able to find a registered birth for him.

Son Thomas married Dorothy Alexander; re-married Mary Jane Cox.

Appreciate help with this line.