Looking for Info on the Coulon Family

my fathers name is robert joseph coulon born in canberra 1953, his parents live in canberra go by the name of gene n soda coulon, my father has 1 brother (ian) 2 sisters (anne & noleen).

im looking for information on anything and everything about my family,
the only coulon's i know is my brother n sister.
my mother and father are not marryed anymore they split wen i was 2 and this bit of info is all she can tell me.

apparently i am related to the coulon's in nowra but thats all i know.

i hope some 1 can help me..