James Fulton Leonard Jr. (May 30, 1920 – August 29, 2020) was an American diplomat who served as Foreign Service Officer and United States Ambassador to the United Nations (1977–1979). He was born in Osborne, Pennsylvania in May 1920. He served in the

United States Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...

during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

. He was a member of the

American Academy of Diplomacy The American Academy of Diplomacy is a private, nonprofit, non-partisan, elected organization whose active membership is limited to men and women who have held positions of high responsibility in crafting and implementing American foreign policy. ...

. He was educated at

Princeton University Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the ...

(B.S. 1942),

Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of high ...

(1952–53), and

Columbia University Columbia University (also known as Columbia, and officially as Columbia University in the City of New York) is a private research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhatt ...

(1963–64). He married Eleanor Martha Hanson, and they raised five daughters together, as well as a son from Eleanor's previous marriage. He died in August 2020 at the age of 100.James F. Leonard Jr. obituary
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References

1920 births 2020 deaths American centenarians Columbia University alumni Harvard University alumni Men centenarians Military personnel from Pennsylvania People from Glen Osborne, Pennsylvania Permanent Representatives of the United States to the United Nations Princeton University alumni United States Army Corps of Engineers personnel United States Army personnel of World War II {{US-diplomat-stub