- (1939) Novel: "Arizona". NOTE: Filmed as Arizona (1940).
- (1942) Novel: "Sugarfoot". NOTE: Filmed as Sugarfoot (1951).
- Novel: "Stand-In". NOTE: Filmed as Stand-In (1937).
- (1922) Story: "Backbone". NOTE: Filmed as Backbone (1923).
- (1953) Novel: "Dangerous Angel"
- (1960) Novel: "The Counterfeit Gentleman" (aka "The Counterfeit Cavalier")
- (1925) Novel: "Contraband". NOTE: Filmed as Contraband (1925)).
- (1956) Novel: "The Case of the Nameless Corpse" (aka "The Secret of Shining Brook").
- (1942) Novel: "The Artless Heiress"
- (1945) Novel: "The Land of the Torreones"
- (1959) Novel: "The Lady and the Giant" (aka "The Cardiff Giant Affair")
- (1952) Novel: "The Key Man"
- (1951) Novel: "The Great Mail Robbery"
- (1953) Novel: "Death Keeps a Secret" (aka "Spy and Counterspy")
- (1961) Novel: "The Sinister Strangers".
- (1951) Novel: "No Escape".
- (1955) Novel: "Murder Makes an Entrance".
- (1947) Novel: "Murder for a Million".
- (1961) Novel: "Mark of Treachery".
- (1950) Novel: "Stolen Goods".
- (1959) Novel: "Where There's Smoke" (aka "Arson, Incorporated").
- (1917) Novel: "Sudden Jim". NOTE: Filmed as Sudden Jim (1917)).
- (1927) Novel: "Dance Magic". NOTE: Filmed as Dance Magic (1927)).
- (1941) Story: "Silver Spoons". NOTE: Filmed as Highways by Night (1942)).
- (1924) Novel: "The Steadfast Heart". NOTE: Filmed as The Steadfast Heart (1923)).
- Story: "Face the Facts". NOTE: Filmed as Mr. Boggs Steps Out (1938)).
- (1935) Novel/Story: "Dreamland". NOTE: Filmed as Strike Me Pink (1936)).
- (1918) Novel: "The Source". NOTE: Filmed as The Source (1918)).
- (1921) Novel: "Conflict". NOTE: Filmed as Conflict (1921)).
- (1935) Novel: "Opera Hat". NOTES: (1) Filmed as Mr. Deeds (2002)). (2) Serialized in "The American Magazine".
- Novel: "For Beauty's Sake". NOTE: Filmed as For Beauty's Sake (1941)).
- Novel: "Opera Hat". NOTE: Filmed as Halk Çocugu (1964), Mr. Deeds Goes to Town (1936), Mr. Deeds Goes to Town (1969), Anadolu çocugu (1964), Mr. Deeds (2002)).
- Story: "Recreation Car". NOTE: Filmed as Florida Special (1936)).
- Novel: "The Great Crooner". NOTE: Filmed as Mr. Dodd Takes the Air (1937)).
- (1925) Novel: "Miracle". NOTE: Filmed as A Woman's Faith (1925)).
- Story: "Knots and Windshakes". NOTE: Filmed as French Heels (1922)).
- (1930) Novel: "Hard Money".
- (1920) Novel: "Youth Challenges".
- (1931) Novel: "Gold".
- (1929) Novel: "Dynasty".
- (1911) Book: "Quizzer No. 20, Being Questions and Answers on Insurance".
- (1928) Novel: "Knuckles".
- (1919) Novel: "Highflyers".
- (1916) Novel: "The Hidden Spring".
- (1926) Novel: "Rhoda Fair".
- (1915) Book: "Into His Own: The Story of an Airedale".
- (1914) Book (ed.): "The American Boy's Workshop: Each Subject by an Expert".
- (1919) Novel: "The Little Moment of Happiness".
- (1931) Novel: "Speak Easily". NOTES: (1) Filmed as Speak Easily (1932). (2) Serialized in the "Saturday Evening Post" in 1932.
- (1913) Novel: "Thirty Pieces of Silver".
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