Thomas Patten Stafford (September 17, 1930 – March 18, 2024) was an American Air Force officer, test pilot, and NASA astronaut, and one of 24 astronauts who flew to the Moon. He also served as Chief of the Astronaut Office from 1969 to 1971.
After graduating from the United States Naval Academy, Stafford was commissioned in the United States Air Force, flying the F-86 Sabre before becoming a test pilot. He was selected to become an astronaut in 1962, and flew aboard Gemini 6A in 1965 and Gemini 9A in 1966. In 1969, he commanded Apollo 10, the second crewed mission to orbit the Moon. Here, he and Gene Cernan became the first to fly an Apollo Lunar Module in lunar orbit, descending to an altitude of nine miles (fourteen kilometres).