University of Oklahoma Archives, Board of Regents Collection, RG02. WHC U3501. Western History Collections, University of Oklahoma Libraries, Norman, Oklahoma.
University of Oklahoma Archives, Board of Regents Collection, RG02. WHC U3501. Western History Collections, University of Oklahoma Libraries, Norman, Oklahoma. https://archives.libraries.ou.edu/repositories/2/resources/11029 Accessed January 29, 2022.
