[1] Ursula Reilly graduated from a Catholic girls' high school, Lauralton Hall in Milford, Connecticut.

[2] Books by Ursula Curtiss include Voice Out of Darkness (1948), The Second Sickle (1951), The Iron Cobweb (1953), The Noonday Devil (1953), The Deadly Climate (1954), Widow's Web (1956), The Face of the Tiger (1958), So Dies the Dreamer (1960), The Stairway (1961), The Forbidden Garden (1962) Hours to Kill (1962), The Wasp (1963), Child's Play (1964), Danger: Hospital Zone (1967), Don't Open the Door!

(1969), Letter of Intent (1971), Dig a Little Deeper (1976), In Cold Pursuit (1977), The Menace Within (1978), Poisoned Orchard (1980), Graveyard Shift (1982), and Death of a Crow (1983).

[3] She also wrote short fiction,[4] and several of her novels appeared in serial format in magazines such as Good Housekeeping[5] and The Australian Women's Weekly.

[11][12] In 1956, The Spectator called her Widow's Web a "little masterpiece of suspense and ambiguity...quietly, pursuasively done, combining realism with ingenuity to a degree as rare on the author's side of the Atlantic as on ours.