Sunk 16 March 1941 by German battleship SCHARNHORST.
Dates from Oyster Company ledger.
Sunderland Daily Echo & Shipping Gazette of 6 Aug 1932 SILVERFIR arrived River Blackwater 23-07-32
Shields Daily News 27 Jan 1933 reported SILVERFIR (from River Blackwater) for Sunderland require tug assistance due to boiler problems when about 4 miles off port
Shields Daily News 27 Jan 1933 SILVERFIR arrived River Wear 26-01-33 from River Blackwater