Life (1935) – writer – with Jane Withers The First Baby (1936) – writer Gentle Julia (1936) – writer – with Jane Withers The Country Beyond (1936) – writer Pepper (1936) – writer – with Jane Withers Ramona (1936) – writer – directed by Henry King Can This Be Dixie? (1936) – writer – with Jane Withers Career Woman (1936) – writer Time Out for Romance (1936) – writer This Is My Affair (1937) – writer Slave Ship (1937) – writer Wife, Doctor and Nurse (1937) – writer – directed by Walter Lang Second Honeymoon (1937) – writer – directed by Walter Lang In Old Chicago (1937) – writer – directed by Henry King The Baroness and the Butler (1938) – writer – directed by Walter Lang Alexander's Ragtime Band (1938) – writer – directed by Henry King Gateway (1938) – writer Kentucky (1938) – writer The Story of Alexander Graham Bell (1939) – writer Young Mr. Lincoln (1939) – writer – directed by John Ford Drums Along the Mohawk (1939) – writer – directed by John Ford Brigham Young: Frontiersman (1940) – writer – directed by Henry Hathaway Hudson's Bay (1941) – writer Man Hunt (1941) – writer (with Dudley Nichols) – directed by Fritz Lang Belle Starr (1941) – writer To the Shores of Tripoli (1942) – writer Tales of Manhattan (1942) – writer Thunder Birds (1942) – writer, producer – directed by William Wellman Immortal Sergeant (1942) – writer, producer The Ox-Bow Incident (1943) – writer, producer – directed by William Wellman Guadalcanal Diary (1943) – writer Wilson (1944) – writer – directed by Henry King A Bell for Adano (1945) – writer, producer – directed by Henry King The Razor's Edge (1946) – writer Colonel Effingham's Raid (1946) – producer Mother Wore Tights (1947) – writer, producer – directed by Walter Lang Captain from Castile (1947) – writer, producer – directed by Henry King The Walls of Jericho (1948) – writer, producer When My Baby Smiles at Me (1948) – writer Yellow Sky (1948) – writer, producer – directed by William Wellman You're My Everything (1949) – writer, producer – directed by Walter Lang Cheaper by the Dozen (1950) – writer, producer – directed by Walter Lang My Blue Heaven (1950) – writer – directed by Henry Koster American Guerrilla in the Philippines (1950) – writer, producer – directed by Fritz Lang I'd Climb the Highest