Margaret Truman

Mary Margaret Truman-Daniel, widely known throughout her life as "Margaret Truman", (1924—2008) was an American singer who later became a successful writer of mysteries and non-fiction. She was the only child of Harry Truman (33rd President of the United States) and his wife Bess.

Margaret Truman in The Man With the Iron Heart
At a 1947 speech in San Francisco, Diana McGraw exhorted her supporters to throw the Trumans out of the White House the following year. This included Margaret Truman and her piano.