This turned up the old school year books for my dad, including some photos I would probably not have seen otherwise. Saved into my family archives now as something for my son to see about his grandpa in the future.
I momentarily thought "Me too", but it turns out there was a kid about 10 year younger than my dad who went to the same-named school at the same time but in a different State.
So ultimately all that searching his name revealed was that he's never attempted to cultivate an online presence.