Hamerschlag, Arthur A., of Carnegie Institute of Technology [1 letter]

Hamerschlag, Arthur A., of Carnegie Institute of Technology [1 letter], Box: 2, Folder: A:100. Papers of William Poel, MS 31. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/408798 Accessed December 24, 2025.