John Turner Sargent Sr. (June 26, 1924 – February 5, 2012) was president and CEO of the Doubleday and Company publishing house from 1963 to 1978, taking over from the previous president, Douglas Black. He led the expansion of the company from "a modest, family-controlled business to an industry giant with interests extending into broadcasting and baseball." A socialite, he was active in New York's cultural circles.
John Turner Sargent was born probably on Long Island, New York and was raised in Cedarhurst. He was the son of Charles S. Sargent and his wife. His paternal grandfather was botanist Charles Sprague Sargent, the first director of the Arnold Arboretum at Harvard University.
His father became successful in finance as a partner in Hornblower & Weeks, a securities concern in New York. The young Sargent attended the private St. Mark's School and a year at Harvard College before enlisting in the Navy during World War II.
In May 1953 Sargent married Neltje Doubleday, who was 18. She was the granddaughter of the late Frank N. Doubleday, who founded the Doubleday publishing company in 1897. The couple had a daughter Ellen and son John Turner Sargent Jr.
After they divorced in 1965, Neltje Doubleday Sargent moved with their children to Wyoming. She remarried, bought a ranch, restored and operated the historic Sheridan Inn, and established herself as an abstract painter. In 2005 she received one of the annual Wyoming Governor's Art Awards.
Sargent remarried on December 21, 1985, to Elizabeth Nichols Kelly, the fiction and books editor of Cosmopolitan magazine. She brought her two children to the marriage.