American Alligator (Alligator mississippiensis) from “Alligators” by Ada and Frank Graham - PC-21, ©1979, Dell Publishing, Box: 5, Folder: 30, item: 2. Natural History Art and Illustration by D. D. Tyler, MS 337. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/310617 Accessed June 24, 2025.