Amroth Castle SA 23
| Built | 1897 Edwards Bros Ltd, North Shields (Steel) |
| Yard No | 563 |
| Owner at New | Castle Steam Trawlers Ltd, London (George Hogarth Douglas Birt, Milford Haven manager) |
| ID no | 108301 |
| Launch Date | 27.09.1897 |
| Completed | 01.1898 |
| Gross Tons | 153 |
| Nett Tons | 48 |
| Engine | 54 hp T.3-cyl by North Eastern Marine Engineering Co Ltd, Sunderland |
| Length | 105.5ft |
| Breadth | 20.8ft |
| Depth | 10.9ft |
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| Owners | |
| 01.1898 | Registered at London LO 161. |
| 22.06.1899 | Towed S.S. "Balmoral" 100 miles to Gravesend. |
| 13.08.1906 | Owned by Castle Steam Trawlers, Swansea |
| 13.08.1906 | London registry closed. |
| 13.08.1906 | Registered at Swansea SA 23. |
| 13.08.1906 | George Hogarth Douglas Birt, Milford Haven appointed manager. |
| 27.12.1907 | Owned by John Cairns, St Margaret’s Fife Scotland. & James William Petersen, Edinburgh. |
| 01.06.1909 | Mortgaged by John Cairns, St Margaret’s Fife & James William Petersen Edinburgh (A). |
| 01.06.1909 | Mortgagee; Royal Bank of Scotland Edinburgh. |
| 13.02.1911 | Mortgaged by John Cairns, St Margaret’s Fife & James William Petersen, Edinburgh (B). |
| 13.02.1911 | Mortgagee; William Annan, Edinburgh. |
| 09.12.1911 | Mortgages (A) & (B) discharged. |
| 1911 | Owned by Dutch owners in Ijmuiden |
| 09.12.1911 | Swansea registry closed. |
| 1911 | Renamed “CATHARINA” |
| 1911 | Registered at Ijmuiden |
| Undated | Renamed “BRITANNIA I”. |
| Undated | Renamed “STORMVOGEL”. |
| Circa 1925 | Owned by Vissch Mij “Emergo” Ijmuiden Holland (J. Barneveld manager). |
| Pre1930 | Owned by N.V. Maats Acacia, Ijmuiden Holland. |
| Pre1930 | Renamed “ACACIA” |
| 1932 | Owned by N.V. Zeerissch Maats “Alaska I” (P. Zwart manager) Ijmuiden Holland. |
| 1932 | Renamed “ZWALOW”. |