From: Dictionary of American Naval Fighting Ships
Tramp -a wooden-hulled steam yacht built in 1901 at Bristol, R.I., by the Herreshoff Manufacturing Co. -was acquired by the Navy on 13 July 1917 from Raymond B. Price of New York City. Designated SP-646, Tramp was assigned to the 2d Naval District and served on section patrol through the end of World War I. On 28 March 1919, Tramp was sold to Thomas Butler and Company, Boston, Mass.