The American Flag. (Matamoros, Tamaulipas, Mexico), Vol. 1, No. 37, Ed. 1 Tuesday, September 29, 1846, newspaper, September 29, 1846; (https://texashistory.unt.edu/ark:/67531/metapth478719/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .