No photoBertha Muzzy SinclairWriting · 1871–1940IMDb BiographyNovelist and screenwriter. Wrote many screen adaptations of her own novels in the 1910's.Writing 11MOVIEChip of the Flying U1939MOVIEPoints West1929MOVIEKing of the Rodeo1929MOVIEChip of the Flying U1926MOVIERidin' Thunder1925MOVIETaming the West1925MOVIEThe Galloping Devil1920MOVIENorth of Fifty-Three1917MOVIEHow Weary Went Wooing1915MOVIEChip of the Flying U1914MOVIEShotgun Jones1914
