In 1931, the league initially featured the Corpus Christi Seahawks of Corpus Christi, the Harlingen Ladds of Harlingen, the McAllen Palms of McAllen and the San Benito Saints of San Benito.
McAllen finished in first place with a 55–37 record; they also won the league playoff against La Feria 3 games to 0.
The league returned as a Class D level circuit in 1949, featuring the Donna Cardinals of Donna, the Corpus Christi Aces, the Laredo Apaches of Laredo, the Brownsville Charros of Brownsville, the McAllen Giants and the Del Rio Cowboys of Del Rio.
Corpus Christi finished first in the standings and faced McAllen in the postseason, winning 4 games to 0.
Monty Stratton, Joe Koppe, Dick Midkiff and Vicente Amor played in the league that year.
Playoff: McAllen 3 games, La Feria 0. schedule Donna moved to Robstown June 6.