SMS UB-91 german submarine England 1919
The UB-91 was surrendered at Harwich on 21 November 1918. Operated by a British crew, she toured several cities, including Cardiff and Newport, where she was displayed from 12–20 January 1919 and visited by local officials to raise funds for mariners’ charities. After the boat’s breakup at Briton Ferry in 1921, its deck gun was moved to Chepstow’s war memorial. Her only wartime skipper, Hertwig, credited with 14,668 tons of shipping (Tampa and three steamers) returned to Germany on board the transport Lucia Woerman and resigned from the Imperial Navy in 1920. He later joined the Kriegsmarine in 1937 at age 52 and held a series of training and desk jobs. KzS Hertwig was taken prisoner by the British during the liberation of Denmark in May 1945 and held in a PoW camp till the end of 1946. He passed in 1958, of cancer.