 Julia Clara Catherine Dolores Birk Olsen Hitchens was born in Texas, USA. She worked as a nurse and as a teacher before she started her writing career. She also wrote under the pseudonyms 'Dolan Birkley', 'Noel Burke', and 'D.B. Olsen'. She also wrote together with her husband Hubert Allen Hitchens. |
Titles and year of publication:
| 1) Stairway to an Empty Room | 1951 |
| 2) Nets to Catch the Wind (Also published as: Widows Won't Wait [1954]) | 1952 |
| 3) Terror Lurks in Darkness | 1953 |
| 4) Beat Back the Tide (Also published as: The Fatal Flirt [1956]) | 1954 |
| 5) Sleep with Strangers | 1955 |
| 6) Fools' Gold | 1958 |
| 7) The Watcher | 1959 |
| 8) Sleep with Slander | 1960 |
| 9) Footsteps in the Night | 1961 |
| 10) The Abductor | 1962 |
| 11) The Bank with the Bamboo Door | 1965 |
| 12) The Man Who Cried All the Way Home | 1966 |
| 13) Postscripts to Nightmare (UK Title: Cabin of Fear [1968]) | 1967 |
| 14) A Collection of Strangers | 1969 |
| 15) The Baxter Letters | 1971 |
| 16) In a House Unknown | 1973 |
| As 'Dolan Birkley' | |
| 1) The Blue Geranium | 1941 |
| 2) The Unloved | 1965 |
| As 'Noel Burke' | |
| 1) The Shivering Bough | 1942 |
| As 'D.B. Olsen' | |
| 1) The Clue in the Clay | 1938 |
| 2) The Cat Saw Murder | 1939 |
| 3) Death Cuts a Silhouette | 1939 |
| 4) The Ticking Heart | 1940 |
| 5) The Alarm of the Black Cat | 1942 |
| 6) Cat's Claw | 1943 |
| 7) Catspaw for Murder | 1943 |
| 8) The Cat Wears a Noose | 1944 |
| 9) Bring the Bride a Shroud (Australian Title: A Shroud for the Bride [1957]) | 1945 |
| 10) Cats Don't Smile | 1945 |
| 11) Cats Don't Need Coffins | 1946 |
| 12) Gallows for the Groom | 1947 |
| 13) Widows Ought to Weep | 1947 |
| 14) Cats Have Tall Shadows | 1948 |
| 15) Devious Design | 1948 |
| 16) The Cat Wears a Mask | 1949 |
| 17) Death Wears Cat's Eyes | 1950 |
| 18) Something About Midnight | 1950 |
| 19) The Cat and Capricorn | 1951 |
| 20) Love Me in Death | 1951 |
| 21) Enrollment Cancelled (Also published as: Dead Babes in the Wood [1954]) | 1952 |
| 22) The Cat Walk | 1953 |
| 23) Death Walks on Cat Feet | 1956 |
| 24) The Night of the Bowstring | 1963 |
| As 'Bert Hitchens and Dolores Hitchens' | |
| 1) F.O.B. Murder | 1955 |
| 2) One-Way Ticket | 1956 |
| 3) End of the Line | 1957 |
| 4) The Man Who Followed Women | 1959 |
| 5) The Grudge | 1963 |