With its wood carved arches surrounding curved protective screens, this ballpark was one of the most interesting and beautiful wooden ballparks ever built. The F-M Twins would keep the Cleveland Indians umbrella until 1941 when they finally went co-op. During the Indians era, they would produce Steve Gromek who would pitch for 17 years for the Indians and Tigers. His best season came in 1954 when he won 18 games. The Northern League would suspend operations during the war effort and return in 1946, with the Twins still a co-op. In 1947, Fargo-Moorhead signed a new deal with the Pittsburgh Pirates, lasting 2 seasons.