 The Crackerjacks are featured in a rock book, "History of Memphis Bands, 1960-72" by Ron Hall, available at bookstores.The Crackerjacks were formed out of another popular 1960s Memphis garage band, "The Out Of Its", in 1965–66.Besides Bobby Sowell, David Preola and Roy Yeager, other members included brothers Ricky and Micky Caughron and bass player Murphy Odom.