Bertha Muzzy Sinclair, better known by the pen name B. M. Bower, was born on November 15, 1871, in Otter Tail County, Minnesota, to Washington Muzzy and Eunice Miner Muzzy. She became one of the most recognized writers of Western fiction during the early 20th century. Her works often centered on life in the American Old West, capturing the spirit and landscape of the frontier with realism and emotional nuance. She wrote novels, short stories, and even screenplays, making her one of the first women to successfully break into the male-dominated Western genre. Her first marriage to Clayton Bower lasted from 1890 to 1905, and she adopted her pseudonym during this period. She later married Bertrand William Sinclair, a fellow writer, from 1905 to 1912, and finally Robert Elsworth Cowan from 1921 to 1939. Her children were Bertha Grace, Roy Noel, and Harold Clayton. Sinclair's writing stood out for its authentic voice, drawing from both personal experience and her deep observation of Western life. She died in Los Angeles, California, on July 23, 1940.
