Henry Edward Crampton (January 5, 1875 – February 26, 1956) was an American evolutionary biologist and malacologist who specialized in land snails. Crampton undertook the first major study of evolution in nature in his research in the Society Islands. 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 taught as a professor at Columbia University and Barnard College from 1904 to 1943. He also worked as a curator at the American Museum of Natural History.
After graduating in 1893, Crampton became an assistant in biology at Columbia University. He stayed in that role until 1895, when he became an instructor of biology at the Massachusetts Institute of Technology.[1][5] The following year, 1896, he returned to Columbia as a lecturer.[1] Crampton became a faculty member at Barnard College in 1899. By 1904, Crampton became a professor of zoology at Barnard College and Columbia University. He served as acting provost at Barnard in 1918 and 1919.[5] He remained a professor until 1943.[6]
Crampton's monographs remain some of the most remarkable publications on any species, for their meticulous detail and the beautiful illustrations they contain. His work on the Society Islands species was never finished, his monographs covering only those of Tahiti and Moorea. The volumes on Huahine, Raiatea, Tahaa and Bora Bora were never finished. This work is being revived, and the centenary of his first volume (Tahiti in 1916) is to be marked by the publication of a new monograph on all the Partulidae.[7]
Crampton married Marian Maud Tully on October 27, 1896, in New York City.[9] Together, they had two children: Henry and Ann. Henry E. Crampton Jr. married Harriet Jessup, the granddaughter of Reverend Jessup, founder of the American University of Beirut.[6][10][11]
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.