Names of ancestors, unseen relatives of H&A characters

[Homeandawayfan.]

Over the years many of the characters have been fleshed out and even names of ancestors of characters given or unseen relatives. I have done a list of what I know but if anyone has any more info it would be good.

Alf Stewart's parents were Gordon and Sarah Stewart, his grandfather Angus Stewart. Alf is Scots by heritage.

Alf had a paternal uncle who was the father of his cousin Jennifer later Atkinson.

Ailsa's dad was Harold O'Rourke, no mention of her mothers name.

Flathead's mother was Isobel Du Pre (not known if maiden name, remarried name, or stage name in acting) I dont know if Don's dad's name was ever revealed but he died in the 1960s sometime.

I think Isobel DuPre had a sister Sophie, Don's uncle.

Don and Mary had a brother Clive Fisher never seen.

Neville McPhee had a cousin in Alice Springs, dont know if he had any other mentioned relatives outside wife Floss and son and grandson. I reckon Nev is of Scottish ancestry seeing as he has a Scot surname and liked playing the bagpipes.