When did Randolph Churchill's former wife help form a nonprofit organization?
American-Russian Cultural Cooperation Foundation: The American-Russian Cultural Cooperation Foundation (ARCCF) is an American nonprofit focused on the promotion of American-Russian cultural dialogue and cooperation. American-Russian Cultural Cooperation Foundation:  Founded in 1992 by a group of prominent Americans, including former Missouri Congressman James W. Symington, Pamela Harriman, former Chief of Staff and Tennessee Senator Howard Baker, and businessman Bill Marriott, the nonprofit has organized concerts, exhibitions, galas, and other cultural events that highlight the history of American-Russian cultural interactions. Pamela Harriman: Pamela Beryl Harriman ("née" Digby; 20 March 1920 – 5 February 1997), also known as Pamela Churchill Harriman, was an English-born American socialite who was married and linked to important and powerful men. Pamela Harriman:  She was married three times, her first husband being Randolph Churchill, the son of prime minister Winston Churchill.
1992