Just posted a follow-up to your brother! Rather long, I'm afraid. Haven't joined forums before.
From my readings, George Manley went on to become the only pilot with the only airplane in the Argentinian Airforce. I may not have the details exactly correct (although I'll research them now) but I know the end result was a three or four-nation airlines.
As I said in a previous post to your brother Scott, send my love to Betty. She was my stepmother, and a lovely and loving lady to me.