marshal (1979) Cowboy The Man and The Myth (1980) The Taming of the West, Age of the gunfighter, Men and Weapons On The Frontier 1840-1900 (1993) The West of Wild Bill Hickok (1994) Guns of the American West (1985) Colt Revolvers and the Tower of London (1998) Age of the Gunfighter: Men and Weapons on the Frontier, 1840–1900 (1999) Jack McCall, Assassin: An Updated Account of His Yankton Trial, Plea for Clemency, and Execution (1999) Wild Bill Hickock: The Man and His Myth (1996, 2007) Wild Bill Hickok Gunfighter: An Account of Hickok's Gunfights (2001) Wild Bill Hickok: Sharpshooter and U.S. Marshal of the Wild West (The Library of American Lives and Times) (2004)

Jako współautor The Pleasure of Guns : The Intricate and Beautiful Work of Famous Gunsmiths (1974) Gunsmoke: Study of Violence in the Wild West (1977) Illustrated History of Guns and Small Arms (1978) California Joe: Noted Scout and Indian Fighter (1987) Buffalo Bill and His Wild West (1989) Rowdy Joe Lowe: Gambler with a Gun (1989) The West From Lewis and Clark to Wounded Knee: The Turbulent Story of the Settling of Frontier America (1995) Gun Law: A Study of Violence in the Wild West Cowboy: The Man and the Myth Triggernometry: a Gallery of Gunfighters with Technical Notes, too, on Leather Slapping as a Fine Art, gathered from many a Loose