Martin and Osa Johnson thrilled American audiences of the 1920s and 30s with their remarkable movies of far-away places, exotic peoples, and the dramatic spectacle of African wildlife. Their own lives were as exciting as the movies they made--sailing through the South Sea Islands, dodging big game at African waterholes, flying small planes over the veldt, taking millionaires on safari. Osa Johnson's ghostwritten autobiography, I Married Adventure,...