Science: The Two Schirras

All three stars of The Wally, Walt and Donn Show shared equal billing, but each performance, like the flight itself, really belonged to the spacecraft commander, Wally Schirra. The impressive efficiency of Apollo 7 and its crew was fitting tribute to the 45-year-old veteran who is making his last flight.

By now, everyone who has worked with him is convinced that there are really two Wally Schirras. One will be best remembered for his high jinks in space. On his first mission, he smuggled an unauthorized steak sandwich aboard the spacecraft. In mid-December 1965,...