Collectors. Business correspondence and papers (1871–1935) of Fritz Sittell relating to the Choctaw Coal and Railway Company, the Choctaw Trading Company, Sittell’s other business interests, and the development of the town of McAlester, Oklahoma; personal correspondence (1871–1943) including letters from Tams Bixby, Peter Pitchlynn, the Pitchlynn family, Green McCurtain, Robert L. Owen, Moritz Lippman, and others; and certificates (1890–1900) of Sittell’s appointment as U.S. marshal and special deputy sheriff of Tobucksy County, Choctaw Nation, along with clippings, business cards, a sketch of house floor plans, government documents, and biographical materials relating to Sittell’s family.