"Aeropuerto Internacional General Servando Canales de Matamoros (aka Matamoros International)." is correct - Bear obviously got there earlier but Shackman named it
I saw the older airport - which looks very WW2 to me but know little about it. I had a US colleague from Brownsville and he used to cross the border and use it for onward flights via Mexico City to the outside world - far faster than going all the way to Houston or DFW.
Here are some pics of the good General, who seems to have been a decent enough bloke.