This was long enough ago I honestly don’t quite remember. I’ve been playing — starting with the box set of Dungeons & Dragons I got from Hess’ department store in…’78? ’79? maybe? Long enough that it was “dungeon master”, not gamemaster. I know it took a long time to find someone who wanted to play. There was a distant cousin I wound up running the game for, and there was an older guy who was running D&D at the local library, but I don’t remember his name, but I remember he didn’t make it very exciting; it was very rules oriented.
Once I had an actually group of friends playing by 1980, we played a lot — and I was usually the GM’d. We cycled through a lot of games — all the TSR offerings, then hit on James Bond:007, which was my favorite system until about a decade ago. It’s still damned good.
In college, others would take over running games, but they usually would last a few episodes then hand it off to me because they were busy or just didn’t have the time.
The only one that really sticks is the redheaded giant dude, totally spectrum, who ran Dungeons & Dragons for the group for about most of a session before we started working on peeling out the good gamers for our own group. This guy was stunningly misogynistic — after going through his 80 page bible on his game world, he gave us our characters, making sure the singular female got the cleric…who was mute. Better yet, he made sure his wife was getting us drinks and food. He had played once at our place and while stretching, he knocked the glass light cover off the kitchen ceiling. Shatter. Did he offer to clean up? Nope — he expected my then-wife to.
Then there was the goth Christian who ran Call of Chthulu — more on him later…