Charlie Duke Signed Crescent Earth Photograph.

As Lunar Module pilot of Apollo 16 in 1972, Charles Duke became the tenth and youngest person to walk on the Moon, at age 36 years and 201 days. In April 1966, Duke was one of nineteen men selected for NASA's fifth group of astronauts. In 1969, he was a member of the astronaut support crew for Apollo 10. He served as CAPCOM for Apollo 11, the first crewed landing on the Moon. His distinctive Southern drawl became familiar to audiences around the world, as the voice of a Mission Control made nervous by a long landing that almost expended all of the Lunar Module Eagle descent stage's propellant. Duke's first words to the Apollo 11 crew on the surface of the Moon were flustered, "Roger, Twank...Tranquility, we copy you on the ground. You got a bunch of guys about to turn blue. We're breathing again. Thanks a lot!"