Walter G. Cowan,...[ et al.] Walter G. Cowan,...[ et al. Walter B. Meigs,...[et al.] Walter B. Meigs,...[et al. Walter L. Schnwandt ...[et al.]. James C. Coleman,...[et al.] Mildred A. Dawson,...[et al.] Allen H. Kelson,...[et al.] James C. Coleman,...[et al. Peter Greenwald,...[et al.]