[Simpson-Williamson House Photograph #1], photograph, January 1977; (https://texashistory.unt.edu/ark:/67531/metapth479268/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Simpson-Williamson House Photograph #1], photograph, January 1977; (https://texashistory.unt.edu/ark:/67531/metapth479268/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .