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.