Henry Edward Crampton (January 5, 1875 - February 26, 1956) was an American paleontologist and evolutionary biologist, who specialized in the study of land snails. Crampton made twelve separate expeditions over the course of his career to Moorea near Tahiti to study the land snail genus Partula, while years more were spent measuring and cataloguing his specimens. In all, he dedicated nearly half-a-century to the study.
Crampton served as professor of zoology at Columbia University and Barnard College from 1904 to 1943. He was the curator of invertebrate zoology at the American Museum of Natural History. Stephen Gould has cited Crampton as an inspiration, both for his evolutionary observations on Partula, and the enormous dedication and effort required to undertake them.
- Crampton H. E. 1916. The Doctrine of Evolution Its Basis and Its Scope. New, York, Columebia University Press.
- Crampton H. E. 1916. Studies on the variation, distribution and evolution of the genus Partula. The species inhabiting Tahiti. Carnegie Institution of Washington, 228: 1-311.
- Crampton H. E. 1925. Studies on the variation, distribution and evolution of the genus Partula. The species of the Mariana Islands, Guam and Saipan. Carnegie Institution of Washington, 228a: 1-116.
- Cooke C. M. & Crampton H. E. (1930) "New species of Partula". B. P. Bishop. Mus. Occ. Papers 9: 3-5.
- Crampton H. E. 1932. Studies on the variation, distribution and evolution of the genus Partula. The species inhabiting Moorea. Carnegie Institution of Washington, 410: 1-335.
- Gould, Stephen J.  (2007) "Unenchanted Evening," Eight Little Piggies. Vintage Books. ISBN 978-0-09-950744-4
- Columbia University Libraries
- books by Henry Edward Crampton at Internet Archive
- Works by Henry Edward Crampton at Project Gutenberg