Pembroke Castle A 531
| Built | 1898 Edwards Bros Ltd, North Shields (Iron) |
| Yard No | 566 |
| Owner at New | Castle Steam Trawlers Ltd, London (George Hogarth Douglas Birt, Milford Haven manager) |
| ID no | 108324 |
| Launch Date | 08.11.1897 |
| Completed | 03.1898 |
| Gross Tons | 153 |
| Nett Tons | 58 |
| Engine | 56 hp T.3-cyl by North East Marine Engineering Co Ltd, Sunderland |
| Length | 105.5ft |
| Breadth | 20.8ft |
| Depth | 10.9ft |
| Owners | |
| 30.03.1898 | Registered at London LO 165. |
| 13.08.1906 | Owned by Castle Steam Trawlers, Swansea. |
| 08.1906 | London registry closed. |
| 13.08.1906 | Registered at Swansea SA 27 |
| 29.08.1906 | Crawford Heron, Swansea appointed manager |
| 18.07.1907 | Mortgaged by William Forbes, Newhaven Edinburgh (A) |
| 26.07.1907 | Owned by William Forbes, Newhaven Edinburgh |
| 18.07.1907 | Mortgagee North of Scotland Bank, Aberdeen |
| 06.08.1907 | Mortgaged by William Forbes, Newhaven Edinburgh (B) |
| 06.08.1907 | Mortgagee William Rafferty Glasgow (Fish Salesman) |
| 08.08.1907 | Swansea registry closed. |
| 08.1907 | Registered at Granton GN 67 |
| 09.08.1910 | Skipper Adam Forbes (owners brother) ran ashore on the Cambo Man reef near Fife Ness |
| 15.08.1910 | Refloated by salvage steamer "George Lindsay" and taken to Leith for repair to her the bottom of fish hold. |
| 1912 | Owned by George Craig, Aberdeen (owner/manager) |
| 12.1912 | Granton registry closed. |
| 13.12.1912 | Registered at Aberdeen A.531 |
| 1916 | Fishing from Fleetwood |
| 29.05.1917 | Requisitioned as Fishery Reserve Vessel |
| 1918 | Owned by Port St Mary Fishing & Curing Co Ltd, London (Charles Jeffs Jnr manager) |
| 01.08.1919 | Aberdeen registry closed |
| 05.08.1919 | Registered at Fleetwood FD 340 |
| 1919 | Returned to Owners |
| 11.1926 | Sold as scrap. |
| 26.11.1926 | Fleetwood registry closed. |