BECAUSE of the demands of their assignment the seven Mercury Astronauts have age, size and background generally in common. But equally important are their dissimilarities, for the Astronauts are individualists all.
John Herschel Glenn Jr., 37, Marine lieutenant colonel; 180 lbs, 5 ft. 10½ in., green eyes, red hair (thinning in front). Presbyterian (Sunday school teacher). Born: Cambridge. Ohio; attended Muskingum College at New Concord, Ohio (1939-42), but quit to enter service in 1942. Glenn is the Astronauts' top-ranking, most experienced officer (more than 5,000 flight hours, 1,500 in jets), has seen the...