William Camage (b 9 Oct 1849) married Annie Susannah Baumgardner in 1875 at Braidwood NSW. Their son William E Camage was born 1877.
William and Annie had at least 8 children that I'm aware of. I'm almost certain your William Edward is their son. My great grandmother Isabella (b 1846) was the elder William's sister, and their parents had settled in Majors Creek in the 1840s or 50s.
I've very little info on the family but would be happy to share.