I am descended from Robert B. Winton -Thru- his son Robert C. Winton-thru- his daughter Leona Missourri Winton Cargo. She was my great grandmother. I have one picture of robert winton (not sure if it's Robert B. or his son Robert C.) Just a paper copy off of a copy machine. Small dark haired guy I believe with a mustache.The same one you have I bet.
Johnny McDowell P.S. I joined footnote and have seen Robert B. Winton's service file.