They were also the only Apollo crew all of whose members went on to fly subsequent missions aboard Apollo spacecraft : Young later commanded Apollo 16 , Cernan commanded Apollo 17 .
Stafford commanded the U.S. vehicle on the Apollo -- Soyuz Test Project .
They were also the only Apollo crew all of whose members went on to fly subsequent missions aboard Apollo spacecraft : Young later commanded Apollo 16 , Cernan commanded Apollo 17 and Stafford commanded the U.S. vehicle on the Apollo -- Soyuz Test Project .