The records of the Mark P. Miller Milling Company span the years 1940 to 1959, with the bulk of the material from the 1950's. Included are office files (primarily correspondence and brochures), financial files consisting of accountant's year-end reports and tax records, a grain ledger, and nine bound ledgers. There is also approximately one c.f. of Latah County Grain Growers tax returns and other papers for the years 1949-1960.