The Hampden Implement Records are divided into three series, as follows:
SERIES I: Correspondence This series includes correspondence and other materials related to the ordering of equipment and the business transactions of the Hampden Implement Company. The major correspondent is M.A. Knutson, the president of the firm. The correspondence is arranged in reverse chronological order, and then alphabetically by name of the correspondent. The years covered are 1905-1926. Boxes 1-3
SERIES II: Business Operations Included in this series is miscellaneous bills and invoices and complete inventories from 1931- 1939. Also included are company catalogs and price lists from various suppliers and manufacturers, from 1907-1910, as well as 1922. The catalogs are particularly valuable for a history of agricultural implements in the period. Boxes 4-5
SERIES III: Bound Financial Ledgers This series consists of three groups of different financial records: Company Account Books deal with records of financial transactions between the Hampden Implement Company and specific accounts. 1905-1912. Daily Ledger Books indicate business transactions for individual days and cover the years 1903- 1916. Miscellaneous ledgers include a cash ledger book (1905-1908), a payment due ledger book (1905-1907) and a bills receivable ledger book (1903-1905).