Glenprosen GW 20
| Built | 1907 Alexander Hall & Sons Ltd, Aberdeen (Steel) |
| Yard No | 433 |
| Owner at New | John Stewart Boyle, Glasgow (owner/manager) |
| ID no | 124228 |
| Launch Date | 09.09.1907 |
| Completed | 10.1907 |
| Gross Tons | 224 |
| Nett Tons | 88 |
| Engine | 61 hp T.3-cyl by Alexander Hall & Sons Ltd, Aberdeen |
| Length | 121.3ft |
| Breadth | 21.6ft |
| Depth | 11.7ft |
| Owners | |
| 07.10.1907 | Registered at Glasgow GW 20 |
| 1914 | Requisitioned and converted to minesweeper (Ad No 315). |
| 03.11.1916 | Mined and sunk 1 mile NNE off the Cross Sand Light Vessel, five crewmen lost. |
| Those Lost: -
Alexander Carroll (Skipper) William Walker (Engineer) Bertie E. Stebbings (Trimmer) Harold Bills (Deckhand) Albert Sidney Smith (Cook) |
|
| 1917 | Glasgow registry closed. |