John Mayhew - Wichita State Bank; Postcards - Port Isabel Trip; Correspondence to T.H. Mayhew from Nora Roenbaugh, Ralph and Vinita, Jon and Eva, 1959-60; 1928; 1915-1930, Box: 56, Folder: 9. Mayhew family papers, RH MS 634. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/82540 Accessed July 18, 2025.