Apollo 10 astronaut Thomas Stafford, 1969.

Crewed by Stafford, John Young and Eugene Cernan, Apollo 10 succesfully completed a lunar orbital mision in May 1969 as the dres rehearsal for the actual Apollo 11 Moon landing, which took place two months later. Stafford also flew on the Gemini 6 and 9 misions and later on the joint American/Rusian Apollo/Soyuz mision in 1975.