Hi,
I'm well aware that I'm about 6 year's behind on this conversation, but just wanted to advise that Robert Dunn and Catherine McKinlay were ancestors of mine and that they were definitely Scottish, not Irish. They were married in Scotland in 1849, prior to emigrating to Australia. They also had another son, also called Robert, who I am unable to find a birth record for but I know definitely existed as I am his descendant. I do know that Robert and Catherine were his parents as I have a photo of Catherine.
I also wanted to thank those that provided details of that family of Dunn's as it helped me piece together the family I wasn't aware of before.
Thanks so much!
I am now going to be looking closer at the Vippond connection, now I know that the Dunn's mentioned in the comments are my family. Again, thank you