Peter P. and Tena P. Wiens at the grave of their son Peter Wiens, Junior, Shafter, California, 1940 - 1941, Box: 3, Folder: 78. Voth, Unruh, and Banman families collection, RH MS 1455. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/376225 Accessed September 17, 2024.