Crocker is one of many ballplayers who only appeared in the major leagues during World War II. He pitched a total of three games, all in relief, and his last one was his best. On September 30, 1945, the last day of the season, Crocker pitched two scoreless innings to earn a save in a 4–1 victory over the Philadelphia Phillies at Shibe Park.[1] Totals for his brief career include 2 games finished, 4 earned runs allowed in 51⁄3 innings pitched, and an ERA of 6.75. He was perfect at the plate and on defense, going 1-for-1 (1.000) and recording 1 assist without making an error.
Crocker was also the head basketball coach at Presbyterian College for one year during the 1949–50 season. He coached the Blue Hose to a 14–15 record.