| July 09 1918 | Launched by J. P. Rennoldson & Sons Ltd, South Shields (Yd.No.309) ("Castle" class) for The Admiralty as ISAAC HEATH.
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| August 21 1918 | Completed. |
| December 30 1919 | Registered by The Admiralty as a fishing vessel at London (LO244). |
| November 16 1922 | Sold to Brand & Curzon Ltd, Milford Haven. Renamed RYLSTON (LO244). |
| >1929 | Sold to J. Marr & Son Ltd, Fleetwood. |
| February 26 1929 | Registered at Fleetwood (FD17). |
| May 28 1929 | Renamed TEROMA (FD17). |
| March 1932 | Fishing off Butt of Lewis, chased and arrested by fishery cruiser NORNA and taken to Stornoway, alleged trawling inside the three mile limit and trying to ram the fishery cruiser. |
| 9 - 11 March 1932 | At Stornoway Sherrif Court, Sk. Charles Henry Taylor pleaded guilty to fishing without the regulation lights; he was fined £100 for illegal trawling, £10 for not carrying the regulation lights or alternatively 90 days imprisonment. Walter R. Bowie, first hand and Charles Brown, second hand were found not guilty of acting in concert with the skipper. The charges of dangerous navgation were dismissed. |
| August 1939 | Requisitioned for war service and converted for minesweeping duties (P.No.FY.527). |
| March 1945 | Returned. |
| Pre 1949 | Sold to Mason Trawlers Ltd, Fleetwood (Robert H. Bagshaw, manager). |
| May 05 1948 | In strong NW wind, choppy sea and showery, stranded 3 miles N of Port Askaig, Islay. Port Askaig lifeboat stood by. |
| August 1958 | Sold to Hammond Lane Foundry Ltd, Dublin for demolition. |
| August 07 1958 | Arrived at Dublin from Fleetwood under own power. |
| Note | (Isaac Heath, Private, Marine, age 22, b. Uphill, Somerset - VICTORY (ML185)) |