Wednesday's Portrait: Earl Dwight Mendenhall

Today's Portrait: 
Earl Dwight Mendenhall- my great grandfather
b. 21 Feb 1894 in North Star, Ohio
d. 26 Nov 1972 in Dayton, Ohio

I got this picture from my mom. She said this is a picture of her grandfather- Earl Mendenhall- who she said was a chiropractor, although, I couldn't find this information in any census records. I don't know what year this was either.