Norman Peterson was my great grandmother's younger brother, born in 1886.
When I first saw the following photograph, I didn't know who for sure it was. It looked like other pictures I had seen of Norman, but fortunately, my dad had written on the back of this postcard and confirmed that identification. I should check the address and see if there's still a house there. It's a shame, though, that the stamp is so badly torn.
What I didn't know until I scanned the photo and opened it in the (basic) editing software was that someone else was in the scene!
So I enhanced it just a bit before posting here. "Congratulations from all Chicagoans."