"18.185542" . . "Sold, 28 August 1919; ultimate fate unknown" . . "2.7432" . . . . "USS Alpha (SP-586)" . "1917-05-19" . . "17.0688" . "1917-05-19" . "0.9144" . . . . "1919-05-17" . "USS Alpha (SP-586)" .