Rio Grande Valley League history
| Class D | 1931, 1949 |
| Class C | 1950 |
Teams (in alphabetical order)
Brownsville Charros, 1949-1950
Corpus Christi Aces, 1949-1950
Corpus Christi Seahawks, 1931
Del Rio Cowboys, 1949-1950
Donna Cardinals, 1949
Donna-Weslaco Twins, 1950
Harlingen Capitals, 1950
Harlingen Ladds, 1931
LaFeria Nighthawks, 1931
Laredo Apaches, 1949-1950
McAllen Giants, 1949-1950
McAllen Palms, 1931
Robstown Cardinals, 1949
Robstown Rebels, 1950
San Benito Saints, 1931