My great grandfather Henry did not serve as far as I know. His younger brother Orlando did, however. Here he is pictured below in a photo that I got from my "cousin" Kathy La Porte Marchacos:
During World War II, Orlando was also subject to what was commonly known as the "old man's draft" but was not called. Note in his registration card below, he was 47 when he registered The civil service law in effect at the time required registration of all men up to 64 years old!