Complex sentence: His teammates in Beaumont that year included Greenberg, Schoolboy Rowe, Pete Fox, and Elden Auker--all of whom would play together on Detroit's 1934-1935 Detroit pennant teams.
Split into simpler sentences: His teammates in Beaumont that year included Greenberg, Schoolboy Rowe, Pete Fox, and Elden Auker. Each of these players would play together on Detroit's 1934-1935 Detroit pennant teams.