James Watson

James Dewey Watson was born in Chicago, Illinois, on April 6, 1928, the only son of businessman James D. Watson and Jean Mitchell Watson. He earned a B.S. in zoology from the University of Chicago in 1947 and a Ph.D. in zoology from Indiana University in 1950, after which he held research fellowships in Copenhagen and subsequently at the Cavendish Laboratory in Cambridge, England. While at the Cavendish Laboratory, Watson met Francis Crick and they combined Crick’s background in physics and X-ray analysis with Watson’s training in genetics to build molecular models of DNA. Drawing on X-ray diffraction data produced by other laboratories, they proposed the complementary base-pairing double-helix model for DNA in early 1953 and published the result in Nature that April, a finding that provided the molecular basis for heredity. Watson continued scientific and institutional leadership after the discovery, writing influential books such as The Double Helix (1968) and Molecular Biology of the Gene, and directing research programs in molecular biology and cancer virology. He served as Director of Cold Spring Harbor Laboratory (CSHL), where he played a central role in revitalizing the institution and promoting research that contributed to understanding oncogenes and the molecular basis of cancer. In the late 1980s, Watson was appointed Associate Director for Human Genome Research at the U.S. National Institutes of Health and in 1989 became Director of the National Center for Human Genome Research, helping to launch the Human Genome Project before stepping down in 1992 after initiating the worldwide effort to map and sequence the human genome. In later decades, Watson remained a prominent and sometimes controversial public figure in science; he retired from active leadership roles at CSHL and served as Chancellor Emeritus. James D. Watson died November 6, 2025, in East Northport, New York, at age 97.