Bradner Stadium first saw professional action in 1939. The Brooklyn Dodgers placed their NY-Penn League farm club here in this ballpark, and the Olean Oilers served it's Brooklyn parent club for 10 full seasons, before moving onto the St. Louis Browns. The Browns only remained here for 1 season... 1949. The Olean Oilers continued to play for 2 more seasons, as an unaffiliated team.