Cash book recording accounts of adventures to London, Barbados, St. Eustatius, Antigua, Louisburg, and Halifax, Nova Scotia, dated 1750-1756. Henry Bromfield shipped spermaceti oil to London, and New England rum and sugar to Halifax and Louisburg. There are also accounts in the volume of coastwise shipping.

J. & J. Amory was the import business of brothers Jonathan (1725 or 1726-1797) and John Amory (1728-1803), likely established in the 1750s in Boston. The J. & J. Amory records consist of ledgers, journals, accounts, and correspondence relating to the import of British and European goods, and deeds and legal records, dated 1716-1797. The collection also includes invoice books and other records of merchants John & Thomas Amory.