by (United States)H.V.Boening;by (United Kingdom)J.S.Rowlinson; by (United States)N.Eldredge;by (United Kingdom)J.D.Collinson; by (United States)E.F.Kloin;by (United Kingdom)S.J.Molinsky; by (United States)D.H.Perkins;by (United Kingdom)D.H.Perkins; by (United States)E.P.Sheehy;by (United Kingdom)J.E.Rowley; by (United States)F.E.Clese;by (United Kingdom)P.D.B.Collins; by (United States)J.F.Rabek;by (United Kingdom)J.V.Dawkins; by (United States)F.B.Hildebrand;by (United Kingdom)L.W.Johnson; by (United States)F.J.Tipler;by (United Kingdom)S.W.Hawking; by (United States)J.C.Donini;by (United Kingdom)A.Gerrard;