UPDATE: We found the answer -- in less than 15 minutes, thanks to friend and colleague Jess who apparently knew the magic keywords that I couldn't find. The remaining mystery is why Chuck, who grew up in Minneapolis, was tied to a division based out of Illinois... This is Ruth's great-uncle Chuck. Chuck didn't have any kids so when the old photo eventually ended up in our hands, we sold it off for the frame. Maybe a good idea, maybe a bad one. But what are you going to do with a big picture of someone who nobody really knows (or knew)? Anyway, from a geneology perspective the mystery is: what does the patch on his shoulder represent? It was a yellow cross on a black background, which seems rather unusual.