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Pearl, Raymond (03 June 1879–17 November 1940), biologist and statistician, was born in Farmington, New Hampshire, the son of Frank Pearl, a grocery clerk and shoe factory foreman, and Ida May McDuffee. After attending public schools in New Hampshire, Pearl went to Dartmouth College, where he graduated in 1899 with an A.B. in biology. He received a Ph.D. in zoology from the University of Michigan in 1902. In 1903 he married Maud Mary DeWitt, also a student at the University of Michigan. His wife became his editorial assistant and occasional coauthor; the couple had two children....