Family background and early education; undergraduate studies in engineering at University of Michigan, faculty who influenced him; doctoral thesis at University of Michigan with Richard Crane on the g-2 experiment. Postdoctoral instructor; decision to work with Robert Dicke on gravitation at Princeton; funding in the Princeton Department, faculty, the ongoing NSF grant for Gravity, Relativity and Cosmology research. The lunar ranging experiment; assembling the team, background observations with balloons and COBE, construction for the 1969 Apollo flight.