Apollo 10

From Left to Right: Gene Cernan (LMP)
                            Tom Stafford (CDR)
                            John Young (CMP)

Mission: May 18 - 26,1960

Backup Crew: Gordon Cooper (CDR)
                    Donn Eisle (CMP)
                    Edgar Mitchell (LMP)

Apollo 10 made the first lunar-orbital test of the lunar module.  Stafford and Cernan took the lunar module 50 miles above the lunar surface.