No such crew was found.  The major skills needed were astrogator, medical doctor, cook, machinist, ship's commander, semantician, chemical engineer, electronics engineer, physicist, geologist, biochemist, biologist, atomics engineer, photographer, hydroponicist, rocket engineer.  Each crew member would have to possess more than one skill, or be able to acquire extra skills in time.  There were hundreds of possible combinations of eight people possessing these skills; there turned up three combinations of four married couples possessing them, plus health and intelligence - but in all three cases the group-dynamicists who evaluated the temperament factors for compatibility threw up their hands in horror.