F. S. Bell used. F. S. Bell Captain Frederick Secker Bell CB (17 August 1897 – 23 November 1973) of the Royal Navy was the commander of during the Battle of the River Plate in December 1939. He was educated at Matfield Grange, a prep school in Kent, and then at the Royal Naval Colleges of Osborne and Dartmouth. He served afloat in the battleship at the Battle of Jutland, as First Lieutenant of the destroyer in the Reserve Fleet at Devonport, 1923–25, and as executive officer of from 1935–38 and was promoted captain on 31 December 1938. He took command of in
HMS Spearfish was reported that she sank her sister ship, . Later that year, on 20 May, she sank two Danish fishing vessels "S.130" and "S.175" with gunfire in the North Sea. "Spearfish" sailed from Rosyth on 31 July 1940, still under the command of "Jock" Forbes, to patrol off the Norwegian coast. On 1 August she was spotted on the surface by the under the command of Wilhelm Rollmann who attacked and sank her, about west-southwest of Stavanger. There was only one survivor. HMS Spearfish HMS "Spearfish" was a second-batch S-class submarine built during the 1930s for the Royal Navy. Completed