William Jay was an American reformer, jurist, and son of  an American statesman who directed U.S. foreign policy for much of what decade?
John Jay John Jay (December 23 [O.S. December 12] 1745 – May 17, 1829) was an American statesman, Patriot, diplomat, one of the Founding Fathers of the United States, signatory of the Treaty of Paris of 1783, second Governor of New York, and the first Chief Justice of the United States (1789–1795). He directed U.S. foreign policy for much of the 1780s and was an important leader of the Federalist Party after the ratification of the United States Constitution in 1788.
McGeorge Bundy McGeorge "Mac" Bundy (March 30, 1919 – September 16, 1996) was an American expert in foreign and defense policy, serving as United States National Security Advisor to Presidents John F. Kennedy and Lyndon B. Johnson from 1961 through 1966. He was president of the Ford Foundation from 1966 through 1979. Despite his distinguished career as a foreign-policy intellectual, educator, and philanthropist, he is best remembered as one of the chief architects of the United States' escalation of the Vietnam War during the Kennedy and Johnson administrations.