Robert C. Pooley,...[et al.] Robert C. Pooley,...[et al. Robert E. Elcholz,...[et al.] Albert M. Craig,...[et al.] Herbert H. Gross,...[et al.] Robert A. LeVine ... [et al.] Robert E. Elcholz,...[et al. Robert E. Hinson ... [et al.] Robert G. Smith ... [et al.] Robert Woods ... [et al.]