No photoBertha Muzzy SinclairWriting · 1871–1940IMDb BiographyNovelist and screenwriter. Wrote many screen adaptations of her own novels in the 1910's.Writing · 11MOVIE★ 7.5Chip of the Flying U1939MOVIE★ 7.0Points West1929MOVIE★ 7.0King of the Rodeo1929MOVIE★ 9.0Chip of the Flying U1926MOVIE★ 7.0Ridin' Thunder1925MOVIE★ 10.0Taming the West1925MOVIE★ 10.0The Galloping Devil1920MOVIENorth of Fifty-Three1917MOVIEHow Weary Went Wooing1915MOVIEChip of the Flying U1914MOVIEShotgun Jones1914
