a sandbar at the mouth of the Ligonha River in Mozambique. Three crew members died during unsuccessful attempts to re-float the ship. Among them was her captain, when they were swept away by strong currents while they were trying to make their way to shore crossing the sandbar. Boerum was replaced by Lieutenant J. M. Gardner, who decided that the situation was hopeless, and consequently the Concord was abandoned by the remainder of her crew. Gardner then chartered the Portuguese brig Unao to take the crew of the Concord to Rio de Janeiro. Among the officers who also served aboard the ship was Midshipman John Rodgers, son of the famous Commodore John Rodgers who served in the War of 1812. See also List of sloops of war of the United States Navy Bibliography of early American naval history References Notes Bibliography External links Commodore Matthew C. Perry; Department of the Navy, Naval Historical Center Station Bills of the U.S.S. Concord, 1831-1833 (approximate), MS 55 held by Special Collections & Archives, Nimitz Library at the United States Naval Academy Sloops of the United States Navy 1828 ships Ships built in Kittery, Maine Maritime incidents in October 1842 Shipwrecks in the Indian Ocean