Because my grand parents were not married there are numerous problems tracing, some of my relatives, one of these was my mothers half sister. The only real clue I have is a letter from her to her dad in 1938, OK great we have all the first names, but not her married name, which makes it hard to search electoral rolls and other records. In the hope that someone has a lead I am posting the address where they lived for quite sometime I believe, but definitely in the late 30's which is : 116, Kingsgrove Road, Canterbury, NSW Australia. A lead would be most appreciated as it will open a whole new avenue of research.