Bertha Muzzy Sinclair (1871–1940), better known by her pseudonym B. M. Bower, was a prolific American author who specialized in the genre of Western fiction. Born in the small town of Otter Tail County, Minnesota, Sinclair moved to Montana as a young woman, where the expansive landscapes and ranching life deeply influenced her writing. She married three times, with her first husband—Clayton Bower—...