Boris Sergievsky was one of the most colorful of the early aviators. He made his first flight less than ten years after the Wright brothers made theirs; he made his last only four years before the Concorde took off. Born in Russia, Sergievsky learned to fly in 1912. In World War I, he became a much-decorated infantry officer and then a fighter pilot, battling the Austro-Hungarians. During the Russian Civil War that followed, he fought on three...