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Born in Chicago, Illinois.
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Started university at age 16. It wasn’t until his second year when he decided to major in geology.
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Secretly married Lydia Pedroja whom he met at the University of Colorado.
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Transferred in his senior year because he was advised that if he wanted to be a geologist and paleontologist, Yale was the place to study.
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Helen is born in New Haven, Connecticut.
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Competed his degree at Yale University.
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Completed his Ph.D. at Yale University.
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Patricia is born in New Haven, Connecticut.
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Simpson joins the staff at the American Museum of Natural History in New York.
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Joan is born in Boulder, Colorado.
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Promoted from assistant curator to associate curator at the American Museum of Natural History. He held this post until 1942 and during this time, he made several research expeditions to South America.
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Elizabeth is born in California.
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Divorced Lydia Pedroja due to her history of mental problems. Simpson has custody of Helen and Patricia while Lydia has custody of the two youngest daughters Joan and Elizabeth.
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Marries Ann Roe, a childhood friend from Denver.
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Simpson served in the U.S. Army in Italy and northern Africa as an officer on the staff of General George S. Patton.
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Professor of Zoology at Columbia University.
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Elizabeth becomes Queen.
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He holds this post at the Harvard University Museum of Comparative Zoology, in Cambridge, Massachusetts from 1959-1970.
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Received for his studies of vertebrate evolution through geologic time, and for scholarly synthesis of a new understanding of organic evolution based upon genetics and paleontology.
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Professor of the Department of Geosciences at the University of Arizona from 1967 until his retirement in 1982.
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Died at the age of 82 in Tucson, Arizona.