Accounts book and ledger maintained at the Cheyenne and Arapaho Upper Arkansas Agency, Darlington, Indian Territory, 1869-1875. More than a simple accounts book, this manuscript lists letters received at the agency from July 16, 1869 to June 20, 1870 with notes regarding their contents, inventories of rations, records of substanence issued listing the name of the recipients, and records of supplies delivered by contractors.