High Quality Content by WIKIPEDIA articles! USS Mayflower (1866) was a screw tugboat acquired by the United States Navy at the end of the American Civil War. She performed a variety of duties, including survey work, along the New England and mid-Atlantic coasts of the United States. On completion of her official duties, she was recommissioned and issued to the United States Naval Academy at Annapolis, Maryland, for use as a training ship for midshipmen.