"1912-08-05" . . "1977-03-04" . . "N.T.Burb." . "(Burbidge, N.T)" . "Nancy Tyson Burbidge" . . . "Nancy Tyson Burbidge" . . "N. T. Burb." . . . . . . . . . "This award" . . . "1977" . . . "1912" . . "Nancy Burbidge Medal" . . . . . . . "Nancy Burbidge" . . . . . . . . . . . . . . . . . .