Hume also played baseball, and in February 1929, he was signed by Connie Mack of the Philadelphia Athletics to try out for an outfield position with the team. He was described at the time as "extremely fast, a good fielder and has done creditably at bat."[5] He attended the Athletics' training camp in Fort Myers, Florida.[6] He did not make it to the big league roster, but he did play in the minor leagues from 1929 to 1931. During the 1929 season, he appeared in 112 games for the minor league club in Martinsburg, West Virginia, and compiled a .285 batting average with 37 extra base hits.[1]