Bertha Muzzy Sinclair or Sinclair-Cowan (1871 - 1940), best known by her pseudonym B. M. Bower, was an American author who wrote novels, fictional short stories, and screenplays about the American Old West. Her works, featuring cowboys and cows of the Flying U Ranch in Montana, reflected an interest in ranch life, the use of working cowboys as main characters (even in romantic plots), the occasional appearance of eastern types for the sake of contrast, a sense of western geography as simultaneously harsh and grand, and a good deal of factual attention to such matters as cattle branding and bronc busting." In this book: The Lure of the Dim Trails The Ranch at the Wolverine The Trail of the White Mule Flying U Ranch Her Prairie Knight The Gringos The Long Shadow The Quirt Jean of the Lazy A Lonesome Land Chip, of the Flying U