Soil Survey of Grayson County, Texas, book, 1980; (https://texashistory.unt.edu/ark:/67531/metapth130218/m1/1/: accessed April 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Soil Survey of Grayson County, Texas, book, 1980; (https://texashistory.unt.edu/ark:/67531/metapth130218/m1/1/: accessed April 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .