Gregory, Franklin. "Pigs ain't Pigs," Adventure, vol. 116, no. 6, April 1947

Gregory, Franklin. "Pigs ain't Pigs," Adventure, vol. 116, no. 6, April 1947, Box: 1, Folder: 7. Harry Altshuler papers, MS 251. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/247725 Accessed December 24, 2025.