None survived into adulthood. Never a man to take a predictable path, John Cleve Green, when the time came to attend college, chose instead to sign on as a lowly clerk at the China trading house of N. Above left: the N. Griswold clipper ship Challenge, on which Green served as supercargo. Left: the J. Green School of Science, Princeton University. Agnew, to hone their training in the most prestigious centers of medicine in England, France, and Germany.