Francis French is the director of education at the San Diego Air and Space Museum and the coauthor with Colin Burgess ofInto That Silent Sea: Trailblazers of the Space Era, 1961–1969, available in a Bison Books edition. Colin Burgess is a former flight service director with Qantas Airways and the editor ofFootprints in the Dust: The Epic Voyages of Apollo, 1969–1975(Nebraska 2010). Walter Cunningham was a NASA astronaut from 1963 to 1971 and a crew member on the first manned Apollo flight. nbsp;