Correspondence, financial statements, lists, ledger sheets, and receipts relating to Hooper's investments and his import business in Boston, Mass., and his service in the Massachusetts legislature and the U.S. House of Representatives (1861-1874). Family correspondents include Hooper's father, John Hooper, and brother, Robert William Hooper. Other correspondents include William Appleton, S.T. Dana, George Morey, and Lemuel Shaw.