The Hubble family have asked the community to vote in favour of same-sex marriage, in a video posted by the Yes campaign on September 20.
In the short video, the Northam family of five argue their brother and son Mitch should have the same rights as they have - to marry who he wishes.
Mitch said growing up as a homosexual in Northam was not always easy.
“You do sort of get that conservative approach to who you should be, and who you should be as a man,” he said.
“But at the same time, I had a good bunch of friends and a very supportive family.”
An interview with the family will be in next week’s Avon Valley and Wheatbelt Advocate, out on Wednesday September 27.