Truman survived an assassination attempt. Two Puerto Rico nationalists tried to kill Truman in 1950 when he was staying at Blair House while the White House was under renovation. A White House guard died as he killed one attacker. The other attacker was captured. Truman heard the gun fight from his room.
Truman had an unusual middle initial. Truman’s parents gave him a middle name of “S” after they couldn’t agree on a middle name as a tribute to relatives whose names both started with the letter “S.” Officially, the “S” is followed by a period: “Harry S. Truman.” That’s because Truman used a period with the letter “S” in his correspondence. The Truman Library & Museum offers a detailed explanation of the “S” controversy.