David Scott (born in 1932, now 86 years old) is an American engineer, former test pilot and NASA astronaut. He belonged to the third group of NASA astronauts, selected in October 1963, and made his first flight into space as the pilot of the two-man Gemini 8 mission (March 16-17, 1966) with Neil Armstrong. As a member of the Apollo 15 crew, Scott was the seventh person (of 12 total) to walk on the Moon.
Following the death of John Young in January 2018, Scott is the last living commander of a successful Apollo lunar landing mission and, as such, the only person alive who has flown a spacecraft to a landing on the Moon.
Here, at age 33, preparing for Gemini 8 in early 1966:
With Neil Armstong, 1966: