 Thomas pitched for the Orioles from 1921 to 1925, winning 24 games in 1921 and 32 contests in 1925.Thomas had held out for a higher salary at the start of the 1925 season, and after the season Oriole owner Jack Dunn sold him to the White Sox for a reported $15,000.He later returned briefly to Baltimore as a pitcher in 1935, and then as a pitcher-manager during the 1940s.