League of the Lawless — Marshall Grover

Two could play the same game ... and end up face to face!

Big Jim used to be Sergeant Rand of the 11th Cavalry. Now, as a civilian, he was on the trail of his brother's killer. When he rides into the town of Frankston in Northwestern Kansas, he soon finds himself on the trail of a gang of merciless desperadoes. For a disguise, those outlaws were using the uniform of the U.S. Army. The big man decided upon an equally unique disguise, and penetrated the lair of the lawless in a suit of sober black; he toted a Bible in one hand, a long-barreled Colt .45 in the other. And, as ever, aided (or hampered) by his Mexican sidekick, Benito Espina, they take on the duplicitous gang.

Leonard Frank Meares (February 13, 1921 - February 4, 1993)
Sydney born Len Meares aka Marshall Grover, published around 750 novels, mostly westerns. His best-known works feature Texas trouble-shooters Larry and Stretch. Before starting to write, Meares served in the Royal Australian Air Force, worked in the Department of Immigration and sold shoes. In the mid-1950s he bought a typewriter to write radio and film scripts. Inspired by the success of local paperback westerns, he wrote Trouble Town, which was published by the Cleveland Publishing Company in 1955.
His tenth yarn, Drift! (1956), introduced Larry Valentine and Stretch Emerson. In 1960, he created a brief but memorable series of westerns set in and around the town of Bleak Creek. Four years later came The Night McLennan Died, the first of more than 70 westerns (sometimes called oaters) to feature cavalryman-turned-manhunter Big Jim Rand.