I see that the new REA auction has a run of Yankees spring training rosters/itineraries from 1933 to 1954, missing only 1949. If we could get a picture of the 1934 spring training roster, that would at least settle the question of whether Corson was at spring training with the Yankees that year, as he claimed.
https://bid.robertedwardauctions.com...e?itemid=47830