Hmm. Your dad have three separate MAs, Kiwi!? I would assume he doesn't; he more than likely would have a reflected BA/MA from a university like I mentioned? Quite common in academia. Not a slight or anything. Just keeping things in a less hagiographical perspective. The Nassheads really like to inflate their idol.
Yeah, he did do them separately, being a huge nerd like me
and he did it at a time when the standards were very different (read higher). A Master of Arts degree from back then would be the equivalent of a PhD today, based on what I've come to understand. It took him sometime and he finished them and his PhD in his late 30s / early 40s, while working at the same time. He was offered a couple of very prestigious positions (he was offered to be economic adviser to a couple of south east Asian countries at two different times, which he declined for various reasons) and he was friends with some amazing people.
One of them did 6 years of medicine, got the medical degree, then did a 4 year Engineering course, got the engineering degree and then went on to do an undergraduate law degree followed by a post graduate degree in the same - I kid you not
I met that guy only a couple of times and was pretty young back then (around 9) but even then I could see what an incredible mind he had, although he was also eccentric like Hell, lol! Ah, some of the stories I could tell you