Hendrickson, B. H. (Bertram Higbie); Devereux, R. E. (Robert Eddins) & Templin, E. H. (Edward Henry). Soil Survey of Nacogdoches County, Texas, book, 1930; (https://texashistory.unt.edu/ark:/67531/metapth19765/m1/1/: accessed May 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .