According to this link from a Mears auction he was the medical caretaker for Cobb near the end of his life. My photo is supposed to be from Cobb's personal collection, and given the date of the publication shown it was taken in his playing days. He was also a pall bearer at his funeral.
http://sports.mearsonlineauctions.co...entoryid=33854
http://sports.mearsonlineauctions.co...entoryid=33881
I paid more than these prices.