What aeronautical engineer ,born in 1932, was the only  person ever hired into the astronaut corps who had already earned astronaut wings?
NASA Astronaut Group 5 NASA's Astronaut Group 5 was selected by NASA in April 1966. Of the six Lunar Module Pilots that walked on the Moon, three came from Group 5. The group as a whole is roughly split between the half who flew to the Moon (nine in all) and the other half who flew Skylab and Shuttle, providing the core of Shuttle Commanders early in that program. This group is also distinctive in being the only time when NASA hired a person into the astronaut corps who had already earned astronaut wings, X-15 pilot Joe Engle. John Young labelled the group the "Original Nineteen" in parody of the original seven Mercury astronauts.
List of astronauts by year of selection This is a list of astronauts by year of selection, people selected for training for a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Until recently, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. However, with the first sub-orbital flight of the privately funded SpaceShipOne in 2004, a new category of astronaut was created – the commercial astronaut.