Further to the birth suggestion
Children to Benjamin BUTLER and Elsie L:
1903 Annetta C reg Balmain South
1905 Elsie L reg Balmain South
1907 Benjamin reg Balmain South
1910 Ambrose S reg Balmain South
1914 Harry reg Forbes
1917 James S reg Forbes
Edit to add - an online tree suggests that the 'L' in Elsie's name is Laura so she is Elsie Laura.
Marriage:
4999/1903 Reg Sydney
Benjamin BUTLER, Elsie L MITCHELL
Judith