I'm trying to trace my father. His full name is Barry Graham Keith Christie he was born in Traralgon Victoria in 1943? he married my mother Gail Crisp and I was born to them in 1971. A year later my sister was born. .When my mother left him he was living in Townsville.His last known ocupation was a mechanic. Any help would be appreciated as I've been searching for him on and off for 18 years with no luck.