I'm just adding to my original post below. Now that I've actually read the whole thread, I see that someone (sorry, I'm new to this chat thing) actually mentioned my James Gibson and Mary Ann Morton. Wow! I'm pretty excited about that. James did die young, unfortunately, in 1860, in the goldfields at Rocky River, near Armidale NSW. Sarah Jane Gibson, who came over here with them as a baby, married Jesse Pearsall (the son of 2 former transported convicts) who resided in Armidale and they had quite a large family. My great grandmother, Mary May Pearsall was one of their children.
I know very little about the Mortons and Gibsons beyond that, so would be grateful for any information you could share. Cheers, Cherie