| November 16 1917 | Launched by J. P. Rennoldson & Sons Ltd, North Shields (Yd.No.311) ("Castle" class) for The Admiralty as THOMAS DOWDING. |
| December 22 1917 | Completed. |
| August 16 1922 | Registered by The Admiralty as a fishing vessel at London (LO550). |
| November 1923 | Sold to Hellyer Bros Ltd, Hull. |
| November 23 1923 | London registry closed. |
| November 26 1923 | Registered at Hull (H861). |
| December 1923 | Renamed LEONATO (H861). |
| Pre 1927 | Sold to Hull Northern Fishing Co Ltd, Hull (W. R. Nowell, manager). |
| Pre 1930 | Hellyer Bros Ltd became managers. |
| October 1936 | Sold to R. Irvin & Sons Ltd, Aberdeen. |
| October 08 1936 | Hull registry closed. |
| October 09 1936 | Renamed BEN BHEULA (A422). |
| August 1939 | Requisitioned for war service and converted for minesweeping duties (P.No. FY.1681). |
| January 13 1942 | Sold to J. Marr & Son Ltd, Fleetwood for £8200. |
| October 1945 | Returned and re-classed at Glasgow. |
| 1945 | Sold to Pegasus Trawling Co Ltd, St. Anne's-on-the-Sea (William Stevenson, St. Anne's-on-the-Sea, manager) for £20000. |
| March 1949 | Stranded at Caolila, Sound of Islay. Refloated and returned to service. |
| 1952 | Managers became J. Marr & Son Ltd, Fleetwood. |
| July 16 1953 | Sold for demolition. |
| Note | (Thomas Dowding, Quartergunner (prest), age 38, b. Dorset - VICTORY (SB458)). |