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George Gaylord Simpson is born.
Born in Chicago, Illinois. -
Period: to
World War I
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Simpson enters the University of Colorado
Started university at age 16. It wasn’t until his second year when he decided to major in geology. -
Simpson marries his first wife
Secretly married Lydia Pedroja whom he met at the University of Colorado. -
Simpson transfers to Yale University
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. -
Simpson`s first daughter is born
Helen is born in New Haven, Connecticut. -
Simpson receives his Bachelor's degree in geology
Competed his degree at Yale University. -
Simpson receives his Ph.D. in geology
Completed his Ph.D. at Yale University. -
Simpson`s second daughter is born
Patricia is born in New Haven, Connecticut. -
Simpson becomes an assistant curator of vertebrate paleontology
Simpson joins the staff at the American Museum of Natural History in New York. -
Simpson`s third daughter is born
Joan is born in Boulder, Colorado. -
Period: to
Simpson is promoted to associate curator
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. -
Simpson`s fourth daughter is born
Elizabeth is born in California. -
Period: to
The Great Depression
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Simpson divorces Lydia Pedroja
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. -
Simpson marries his second wife
Marries Ann Roe, a childhood friend from Denver. -
Period: to
World War II
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Period: to
Simpson serves in the U.S. Army in World War II
Simpson served in the U.S. Army in Italy and northern Africa as an officer on the staff of General George S. Patton. -
Period: to
Simpson becomes a Professor of Zoology
Professor of Zoology at Columbia University. -
Period: to
The Cold War
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Death of King George IV
Elizabeth becomes Queen. -
Period: to
Simpson accepts a post as Alexander Agazziz Professor of Vertebrate Paleontology
He holds this post at the Harvard University Museum of Comparative Zoology, in Cambridge, Massachusetts from 1959-1970. -
Simpson receives the National Medal of Science
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. -
Period: to
Simpson becomes Professor of the Department of Geosciences
Professor of the Department of Geosciences at the University of Arizona from 1967 until his retirement in 1982. -
Death of George Gaylord Simpson
Died at the age of 82 in Tucson, Arizona.
