- (1918) Story: "The Fifth Ace" (filmed as The Red Glove (1919))
- (1918) Novel: "Suspense" (filmed as Suspense (1919)).
- Novel: "The Island of Intrigue" (filmed as The Island of Intrigue (1919)).
- (1919) Story: "The Single Track" (filmed as The Single Track (1921))
- (1922) Novel (as Douglas Grant): "Two-Gun Sue".
- (1920) Novel (as Douglas Grant): "Anything Once".
- (1919) Novel (as Douglas Grant): "Booty".
- (1924) Novel (as David Fox): "The Handwriting on the Wall".
- (1923) Novel (as David Fox): "The Doom Dealer".
- (1922) Novel (as David Fox): "Ethel Opens the Door".
- (1920) Novel (as David Fox): "The Man Who Convicted Himself".
- (1924) Novel (as Robert Orr Chipperfield): "Bright Lights".
- (1923) Novel (as Robert Orr Chipperfield): "Above Suspicion".
- (1921) Novel (as Robert Orr Chipperfield): "The Trigger of Conscience".
- (1921) Novel (as Robert Orr Chipperfield): "The Man in the Jury Box".
- (1920) Novel (as Robert Orr Chipperfield): "Unseen Hands".
- (1919) Novel (as Robert Orr Chipperfield): "The Second Bullit".
- (1929) Novel (as Christopher B. Booth): "Deceiver's Door".
- (1928) Novel (as Christopher B. Booth): "Killing Jazz".
- (1927) Novel (as Christopher B. Booth): "The Telltale Print".
- (1927) Short stories (as Christopher B. Booth): "Mr. Clackworthy, Con Man".
- (1926) Short stories (as Christopher B. Booth): "Mr. Clackworthy".
- (1926) Novel (as Christopher B. Booth): "$10,000 Reward".
- (1926) Novel (as Christopher B. Booth): "The Amateur Detectives".
- (1925) Novel (as Christopher B. Booth): "A Seaside Mystery".
- (1925) Novel (as Christopher B. Booth): "The Kidnapping Syndicate".
- (1923) Novel (as Christopher B. Booth): "The House of Rogues".
- (1927) Novel: "The Sleeping Cop" (aka "The Braddigan Murder").
- (1926) Novel: "The Mathematics of Guilt".
- (1926) Novel: "The Sleeping Cat".
- (1925) Novel: "The Neglected Clue".
- (1925) Novel: "The Black Joker".
- (1924) Novel: "Liberation" (aka "Impulse").
- (1924) Novel: "Dust to Dust".
- (1924) Novel: "Annihilation".
- (1922) Novel: "McCarty, Incog.".
- (1922) Novel: "The Tattooed Arm".
- (1921) Novel: "The Crimson Blotter".
- (1920) Novel: "How Many Cards?".
- (1919) Novel: "The Twenty-Six Clues".
- (1919) Novel: "Ashes to Ashes".
- (1920) Novel: "The Clue in the Air".
- (1918) Novel: "Island of Intrigue".
- Story: "Lavinia Comes Home" (filmed as Lavinia Comes Home (1916)).
- (1916) Novel: "The Heritage of Cain".
- (1915) Novel (w/William J. Burns): "Crevice" (aka "The Lawton Mystery").
- (1915) Novel: "At One-Thirty".
- Novel: "The Altar of Friendship" (filmed as Tangled Hearts (1916)).
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