British tug Thistle sunk at Queenstown, Ireland according to the magazine Mitteilungen aus dem Gebiete des Seewesens dated 1904 no. 9

An item reported that the British 160 tons tug Thistle of the naval base on the island Haulbowline, Ireland on 6 June 1904 suddenly sunk in the harbour of Queenstown [nowadays Cobh] in 20 metres deep water just after 500 labourers left the ship. There were victims.