L. Ron Hubbard was 13 when he was made an Eagle Scout on April Fool's Day in 1924. He went on to become a science fiction novelist and theologian. The two careers dovetailed in an interesting way in 1949, an anecdote which appears on page 141 of A Book of Ages.
Dancer and choreographer Martha Graham died on this day in 1991. She was 96 and busy choreographing a dance for the Barcelona Olympics. She also appears in A Book of Ages at 42 and 76, when she finally retired from dancing.