Leander Built 06/1907 Cochrane & Sons Selby for Lindsey Steam Fishing
08/1914 Requisitioned as a minesweeper
02/1915 Renamed Leandros
06/08/1915 North Sea – Dover Patrol Skipper Walter Richmond RNR Mine laid by UC 5 Herbert Pustkuchen three days earlier.
Sank off North Knock Sand Buoy off Thames Estuary 51.43N 01.38E7
| Surname | Forenames | Age at Death | Date of Death | Rank | Boat |
| Brady | James | Unknown | 06/08/1915 | Deck Hand | Leandros |
| Cumming | William George | Unknown | 06/08/1915 | Deck Hand | Leandros |
| Dadd | James Edward | 37 | 06/08/1915 | Trimmer | Leandros |
| Glass | John | Unknown | 06/08/1915 | Engineman | Leandros |
| Joyce | Francis | Unknown | 06/08/1915 | Trimmer | Leandros |
| Massam | Harold | Unknown | 06/08/1915 | Trimmer | Leandros |
| Parker | Sidney | 26 | 06/08/1915 | Engineman | Leandros |
Her Details are
- Official Number 125061
- Yard Number 395
- Admiralty Number FY 18
- GT 276 NT 124
- Foc’sle 23
- Dimensions 128 x 22 x 13
- Engines Amos & Smith 70rhp 3 cyl 10.5 Knots
Sank by mine off North Knock 06/08/1915 whilst on Admiralty service