I think there's a few WW1 vets alive still
I know that there are no known living American veterans of World War I, but can't be certain that's the case around the world.
My grandfather, who fought in WWI, died in 1969 before I turned 5. While in France he carved his name high up in the EiffelTower. When his oldest son, my uncle, made it to Paris in WWII months after he took part in the Normmandy Invasion, he followed his father's directions and found his name. My uncle then carved his name under his father's.
