by (United States)Donald Hearn;by (United States)M.Pauline Baker;by (United States)Bohumil Jurek; by (United States)Donald J.G.;by (United States)Claude V.P.;by (United States)Frederick R.K.; by (United States)Donald C.J.;by (United States)Maitland A.E.;by (United States)Valentine D.; by (United States)Donald E.K.;by (United States)Jerry J.W.;by (United States)Barry S.; by (United States)Donald J.Bonald;by (United States)M.Bixby Cooper;by (United States)James R.Kearl; by (United States)Donald R.Fraser;by (United States)Peter S.Rose;by (United States)William D.Perreau by (United States)Donald H.Menzel;by (United States)Jay M.Pasachoff;by (United States)Ruth Sidel; by (United States)Don K.;by (United States)Jim B.;by (United States)Linda K.L.; by (United States)D.L.Emblen;by (United States)Donald H.;by (United States)Donald C.J.; by (United States)J.Julve;by (United States)M.R-Medrano;by (United States)K.R.Popper;