Collection consists of correspondence, and other material related to Colorado historian and author Charles B. Roth. For many years Roth carried on correspondence with Frank Mayer, a soldier and U.S. Marshall in early-day Colorado. Much of the material in this collection pertains to Roth's correspondence with Mayer, as well as with other early-day frontiersmen in Colorado. Includes titles: "The buffalo harvest," "A collection of writings about the outdoor west," and "Hunting moon."