Military Field Notebook, United States Army, by Captain George R. Guild and Leiutenant Robert C. Cotton. 2d ed. Menasha, Wisc, George Banta Publ. Co. [inscribed "Captain HJW Weltmer"], 1917, Box: 3, item: 1. Henry John Weltmer papers, RH MS 23. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/65186 Accessed May 19, 2024.