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President Harry S Truman gave the order to drop the bomb in 1945.
President Harry Truman; he kept a sign with those words on his desk in the White House.Harry Truman used the phrase. He actually had a sign with these words on his desk in the oval office.See the related link below.
Harry S. Truman and Dwight D. Eisenhower were the Presidents of the U.S. during the 1950s. Our 33rd and 34th Presidents were Harry S. Truman, from 1945 to 1953, and Dwight David "Ike" Eisenhower, 1953 to 1961.
JFK A+ is Eisenhower ;) class 2010-2011
FDR ( Franklin Delano Roosevelt0 was the first and most recognized by his initials but one does seem references to JFK ( John F. Kennedy), LBJ (Lyndon B. Johnson) and less often HST ( Harry S. Truman)
Lyndon Johnson preceded Nixon and succeeded Kennedy as US President.
John F. Kennedy *JFK*
In 1961 JFK was president so the answer to your question is JFK.
The Camelot President was JFK.
President Harry S. Truman's favorite movie was the 1946 film My Darling Clementine. It was a western about a gunfight at the O.K. Corral between the Earp family and the Clanton family. This gunfight would ultimately end the feud between those families.
JFK are the initials for John Fitzgerald Kennedy who was a president of the USA.
Wilson