Both my Grandfathers registered for the draft in WWI. I have actually seen the draft registration document for this area and sure enough both their names were there.
I am not sure why my Grandpa McDuffie even bothered as he was a farmer (over a thousand acres) had 12 children and was over 50. My other Grandpa was an ordained Baptist Preacher and did not even have to register but he did anyway. He was also over 50 and had 9 kids.
I did have a great Uncle who served, was gassed and got a permanent disability which made him quite the catch among the girls as this was a poor area and having an Army pension meant he had a lot of money at least for this area.
Sure enough he married the prettiest girl in the area.
I found a bunch of guys with my last name in the WWI draft records, but I did not see my grandfather.
My father was an engineman on a transport and later a minesweeper over there by Korea in the early fifties.