The 1927 Texas Valley League members were the Corpus Christi Seahawks, Edinburg Bobcats, Laredo Oilers and Mission Grapefruiters.
All four teams had played the previous season as the only members of the 1926 Gulf Coast League.
The Texas Valley League began play on April 5, 1927, with the Corpus Christi Seahawks winning the first–half standings.
The Brownsville Charros, Corpus Christi Spudders, Harlingen Hubs, McAllen Packers, Refugio Oilers and Taft Cardinals teams made up the 1938 league franchises.
Corpus Christi won the regular season pennant with a 92–44 record, finishing 8.5 games ahead of second place Harlingen.
In the Finals, the Harlingen Hubs won the championship, defeating Corpus Christi in a four–game sweep.