The Hudson collection consists of mid-17th through early 19th-century correspondence, accounts, legal documents, land papers, business records, and shipping papers of families living in the Essex County, Massachusetts, towns of Newburyport, Salisbury and Amesbury; also in Boston, New York City and Rumford (now Concord), New Hampshire. Papers document family matters; seafaring; land transactions; and trade between New England and New York, and the West Indies, Great Britain, Russia (Archangel), and other New World and European ports. Bulk of papers documents the intermarried Hudson and Rogers families who lived in Newburyport, with branches in New York and Boston, mid-18th through early-19th centuries. Also included are papers of members of the related Balch family of Newburyport, 1766-1837; the True family of Salisbury, 1659-1835; and the Rolfe family of Rumford, New Hampshire. Some additional personal, town, church, school, business, and ship papers are in the collection.