Description: Records of Hugo B. Naffziger (1918-31), Eugene Y. Naffziger (1931-66), and Phillip Naffziger '57 (1967) for the Naffziger Brothers farm in Walnut (Bureau County). Recorded in Farm Account Books prepared by the Department of Agricultural Economics (1924-45) and on forms adapted by the Illinois Farm Bureau Farm Management Service (1946-66), the records contain detailed information on farm operations for each year including an inventory of land, improvements, buildings and livestock;livestock feed and sales; dairy and egg sales; machinery, equipment and automobile inventory and operating expenses; map of the farm and crop-system summary; crops raised and sold; inventory of feed, grain and supplies; cash receipts and expenses; summary of expenses including taxes and unpaid family labor; capital purchases and sales; products used on the farm and a financial and business analysis summary.