[Big Valley School 1906], photograph, 1906; (https://texashistory.unt.edu/ark:/67531/metapth1131583/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Big Valley School 1906], photograph, 1906; (https://texashistory.unt.edu/ark:/67531/metapth1131583/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .