Jeremiah O'Brien

Revolutionary hero, born in Kittery, Maine, USA. He ably defended Machias, Maine (then part of Massachusetts), against British vessels, and captured HMS Margaretta in what was counted as the first naval battle of the Revolution. He commanded privateers (1777–80), and was captured and briefly imprisoned in England (1780).

Captain Jeremiah O’Brien (1744–1818) was in command of Unity when she captured HMS Margaretta in the first naval battle of the American Revolutionary War.

O'Brien and his five brothers, Gideon, John, William, Dennis and Joseph, were crewmembers of the sloop Unity when she captured Margaretta on 12 June 1775, at the entrance to the harbor at Machias (a town then in Massachusetts, later in Maine).

Under the command of Jeremiah O’Brien, thirty-one townsmen armed with guns, swords, axes, and pitch forks captured the British armed schooner in an hour-long battle after Margaretta had threatened to bombard the town for interference with the shipment of lumber to British troops in Boston, Massachusetts. This battle is often considered the first time British colors were struck to those of the United States, even though Unity was not formally a member of the Continental Navy.