In 1948, the Chickasha Chiefs began play in the Class D level Sooner State League. The Chiefs and Pauls Valley Raiders were expansion teams in the league as it expanded from six–teams to eight–teams after forming in 1947. The other 1948 Sooner State League members were the Ada Herefords, Ardmore Indians, Duncan Cementers, Lawton Giants, McAlester Rockets and Seminole Oilers.
