Looking for Burns of Queensland Australia

Looking for any brother or sister's information for Rex Raymond Burns? I know he was in state care he had a sister named Audrey, their mother's name I think was Rita Madeline Julia Burns & Father Thomas James Burns. Rex and Audrey spent the rest of their lifes growing up in Perth Western Australia I know Rex was a very good Lacross player in his younger years just trying to find out more about Rex as I have no further leads their health & trying to get them to remember is impossible now so if anyone can give me any leads it would be great.

Thanks any tip or lead I will be very greatfull for

Hooch