My relative left PA on May 29, 1918 for Camp Humphrey, VA boot camp.
He never returned home.
On his death certificate I find he entered a mental institution sometime in 1919 and stayed there until his death some 50 years later.
His stepfather told siblings he died in the war. (I understand this explaination as the current culture towards mental illness for that era.) I also may assume this man did not return to his home and then go to the mental institution.
So my question is this: At what point in service does one become a veteran? Furthermore PTSD was not known as such in 1918-1919.
I plan to write to NARA and ask about records. However this is the "big fire" time period so I expect not to find any answers since the cemetery did not find any.