Posted By:
Todd SchultzI believe the photo may be from several years later, judging from the arm patch. Although my eyes are bad, it seems to be the patch worn during the 1942 season in honor of our troops during World War II. Check out Marc Okkonen's site on uniforms and see for yourself (buy his book if you haven't already--very handy resource).
http://www.baseballhalloffame.org/exhibits/online_exhibits/dressed_to_the_nines/database_faq.htm
Cochrane was not on either 1936 or 1937 All Star team, and I doubt they would have worn such a patch anyway, at least during the regular season. A Centenial patch was worn in 1939 by all teams, but it looks noticeably different. The only anomoly is that all teams supposedly wore this WWII patch, yet your Boston runner (who facially looks a little like Foxx and who could be in theory, even in 1942) does not appear to have one.
Anyway,if it's from 1942 this would most likely make your catcher Birdie Tebbetts, and frankly, I see the resemblence.
Compare: http://cgi.ebay.com/Birdie-by-Birdie-Tebbetts-James-Morrison-2002_W0QQitemZ4574761889QQcategoryZ378QQcmdZViewIt em
and http://cgi.ebay.com/BIRDIE-TEBBETTS-Printed-Signature-Picture_W0QQitemZ8761639425QQcategoryZ53QQcmdZView Item