The collection consists of copies of handwritten notes taken from High Court of Vice Admiralty records in Kingston, Jamaica, detailing alleged violations in the Caribbean and West Indies of twenty-four American ships associated with the Connecticut River and Connecticut port towns, and seizure of those vessels by the Royal Navy from 1777-1809. Records of subsequent legal proceedings reveal types of cargo carried aboard seized ships, crew makeup, ports of registry, where built, names and residences of owners, and in some cases the disposition of cargo. The economic effect of vessel seizure upon owners and ship masters and methods used to minimize the risk of loss in the event of capture are evident in court depositions and various ship's papers.

Significantly, the justification for seizure was rooted in an 1800 Admiralty Court proclamation which allowed European or Colonial trade by American ships provided that the voyage was interrupted or "broken" by importation into a neutral country. The goods would be off-loaded and inspected by customs, then reloaded and shipped to another port, effectively barring the American ships from using the best trading routes. The Connecticut vessels carried goods to the West Indies and Caribbean ports, and the Admiralty records provide insight into the relationship between merchants, ship owners and captains who faced strict enforcement of international merchant marine laws every time they went to sea. Eventually, in 1812, the United States went to war with Britain because of the resulting violations of neutral rights, the seizure of its ships and the impressment of its sailors.

The High Court of Admiralty in Jamaica, a British province, was in Kingston, thus all foreign vessels captured by the British in the West Indies and Caribbean were brought before this court. Documents in the collection provide the prize's name, commander, owner, crew, rig, burthen, length, port of registry, and construction location and date. Also included is the name of the British vessel which captured the prize, date of capture, allegations against the cargo, and the intended voyage of the cargo before capture. Cargoes are carefully enumerated as are, in many cases, depositions of the commander of the prize. In some cases the depositions include a petition from the commander to the Vice-Admiralty court judge to land and sell the seized cargo.