The SS "Castleford" struck the Crebawethans in June 1877 and led to some of her cargo of 250 to 450 cattle being landed on the island and staying there for up to 10 days. Gurney (1889) reported that "... the animals trampled everything and would have caused an immense amount of damage at the peak of the shearwater and storm petrel nesting season". It seems unlikely that many stayed for 10 days because of the need for fresh water. Cattle were washed up on the Cornish coast as far as Mount's Bay and St Ives. Another ship wrecked nearby, the world's only seven-masted schooner, "Thomas W Lawson" spilled her cargo of oil on 14 December 1907 causing the loss of many birds. In 1971 Rex Cowan found the wreck of VOC "Hollandia" together with a large quantity of coins, bronze cannons and mortars. The ship hit Gunner Rock on 13 July 1743 with the loss of 276 lives.