Well this is an old post but for the record, Louisa was the daughter of William
Burgess and Sarah Jane
Nash (1847-1923).
According to her marr. cert she was born 1867. I never found a birth record for her. Her sister Jane was born 1870 in Launceston though. I'm descended from another of Louisa's sisters, Alice Mary.
If anyone is still around, please contact me.