The Brownsville Charros were part of United League Baseball, an independent professional baseball league with its 2014 teams based in the State of Texas. Here were the 4 teams in the league and their respective websites:
- Brownsville Charros
- Fort Worth Cats (website)
- Rio Grande Valley WhiteWings (website)
- San Angelo Colts
This link led to what was the United League Baseball website.
United League Baseball existed as a standalone independent league or as a division in a larger independent baseball league from 2006 through 2014. Here is the Wikipedia page about the Charros: https://en.wikipedia.org/wiki/Brownsville_Charros