Abstract This collections consists of letters from ship masters of vessels owned or managed by members of the Treat family and from merchants in Bangor, Frankfort, and Winterport, Maine; New York; Boston; Baltimore; Cuba; and South American ports, chiefly relating to cargo transported, but also providing reports of the voyages, the weather, and departure and arrival dates; together with accounts, bills, charter-parties, bills of lading, receipts, insurance policies, cargo manifests, and other...