As mentioned, we know (thanks to photos like this and a uniform folded away in an attic for seventy years) that my grandfather (Papa Olin) was going to be called up for a war that, mercifully, ended before he could see service. Unfortunately that’s about all we know.
His name doesn’t show up in the military records I can see on Ancestry.com. It’s possible he was only called up locally and then his records were destroyed before the Army got them. I don’t know.
But the pictures of this scientific farmer in his World War I uniform remain a little bit of a mystery.