Promissory Note, Henry Snyder and William M. Snyder, [found in leather wallet, boxed separately], July 14, 1893, Box: 5, Folder: 29. Herd family papers, RH MS 1374. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/208613 Accessed December 30, 2024.