Tardieu, P. F. (Pierre François), 1757-1822. A map of Louisiana and Mexico : Carte de la Louisiane et du Mexique., map, 1820; (https://texashistory.unt.edu/ark:/67531/metapth220306/m1/2/: accessed December 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .

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