 She produced award-winning non-fiction, including several ground-breaking science and biography series.Her fiction sometimes pushed the boundaries, as in 1952's "Two and the Town" by Henry Felsen, in which a young girl becomes pregnant and the couple is then forced to marry.Dalgliesh also developed juvenile science fiction, and was Robert A. Heinlein's editor for many of his books, from "Red Planet", (1949), to "Have Space Suit—Will Travel" (1959).