Isabel Egenton Ostrander was born in New York City. She also wrote under the pseudonyms 'Robert Orr Chipperfield', 'David Fox', and 'Douglas Grant'.
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Isabel Egenton Ostrander was born in New York City. She also wrote under the pseudonyms 'Robert Orr Chipperfield', 'David Fox', and 'Douglas Grant'. |
Titles and year of publication:
| 1) At One-Thirty | 1915 |
| 2) The Crevice (UK Title: The Lawton Mystery [1917]) (with William J. Burns) | 1915 |
| 3) The Heritage of Cain | 1916 |
| 4) The Clue in the Air | 1917 |
| 5) Island of Intrigue | 1918 |
| 6) Suspense | 1918 |
| 7) Ashes to Ashes | 1919 |
| 8) The Twenty Six Clues | 1919 |
| 9) How Many Cards? | 1920 |
| 10) The Crimson Blotter | 1921 |
| 11) The Tattooed Arm | 1922 |
| 12) McCarty, Incog. | 1922 |
| 13) Annihilation | 1924 |
| 14) Dust to Dust | 1924 |
| 15) Liberation (UK Title: Impulse [1925]) | 1924 |
| 16) The Black Joker | 1925 |
| 17) The Neglected Clue | 1925 |
| 18) The Sleeping Cat | 1926 |
| 19) The Mathematics of Guilt | 1926 |
| 20) The Sleeping Cop (UK Title: The Braddigan Murder [1928]) (With Christopher B. Booth) | 1927 |
| As 'Robert Orr Chipperfield' | |
| 1) The Second Bullit | 1919 |
| 2) Unseen Hands | 1920 |
| 3) The Man in the Jury Box | 1921 |
| 4) The Trigger of Conscience | 1921 |
| 5) Above Suspicion | 1923 |
| 6) Bright Lights | 1924 |
| As 'David Fox' | |
| 1) The Man Who Convicted Himself | 1920 |
| 2) Ethel Opens the Door | 1922 |
| 3) The Doom Dealer | 1923 |
| 4) The Handwriting on the Wall | 1924 |
| As 'Douglas Grant' | |
| 1) The Fifth Ace | 1918 |
| 2) Booty | 1919 |
| 3) The Single Track | 1919 |
| 4) Anything Once | 1920 |
| 5) Two-Gun Sue | 1922 |