The German Imperial Navy ship SMS Wolf (ex Hansa freighter Wachtfels) was an armed merchant raider or auxiliary cruiser the in World War I. In a single cruise she destroyed over 30 ships capturing many of their cargo, passengers, crew. After 451 days she returned to her home port of Kiel on 24 February 1918 with 467 prisoners of war aboard.
Records in The National Archives
- ADM 137/3910 Reports concerning the activities and exploits of German surface raider WOLF, including log of British prisoner on board