Your Theodore may have been too old in this picture,to be the one I am thinking of but I am pretty sure there was a Theodore Peterson in my father's family, one or 2 generations back from my father. They were Swedish and the grandfather, Chris came over in 1867, They lived somewhere on the east coast for awhile, but then went to Omaha NE. The boys scattered in adulthood, to WY & Oregon and other parts.
If any of this sounds familiar, I will be happy to get out my records and give you whatever info I have. I have no pictures, because for some reason, my father did not introduce us to his family, though many were in the same city.
I wish you luck, and as I said, if I can help, just let me know.

Thanks for your reply. Theodore Peterson is not in my family anywhere. I acquired this picture from a girl in Washington state. I bought the picture from her because I was researching Peterson family for a friend. Since then I found out he is not in her family either. So I am just trying to find out where he belongs. If you want to check your records to see if he is in your family, please do so. I would like to find a home for Theodore Peterson.