 Wilhelm returned to Jacksonville in 1949, earning a 17–12 win-loss record and a 2.66 earned run average (ERA).With the Class AAA Minneapolis Millers in 1950, Wilhelm was the starting pitcher in 25 of his 35 games pitched, registering a 15–11 record with a 4.95 ERA.His ERA came down to 3.94 in 1951 with Minneapolis, but his record finished at 11–14.