"Biological Abstracts party in our yard at 732 Yale Avenue, Swarthmore, Pennsylvania, Francis Harper, photo", 1930s

"Biological Abstracts party in our yard at 732 Yale Avenue, Swarthmore, Pennsylvania, Francis Harper, photo", 1930s, Container: Series VII: Box 6D, item: 8. Francis Harper papers, MS 245. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/521888 Accessed December 25, 2025.