Third baseman Merrill "Pinky" May played with the Phillies from 1939 through 1943, later becoming a minor league manager.  He served in the Navy from 1943 through 1946 before managing for 25 years in the farm systems of the Reds, Indians, Yankees and Pirates, retiring in 1972.  His signature here is neat and bold with a bit of re-tracing his steps over the first "M".  The card originates from the Shibe Park collection of autographed cards, an original owner collection carefully collected by a teenage boy who, in 1939 and 1940, obtained many autographs from players arriving at the train station near Shibe Park, and continued for many years to obtain signatures in person and through the mail.  Scrapbook residue is visible on the reverse, as is the case with a good number of cards from this collection.