Prof. John Le Patourel, in The Building of Castle Cornet, mentions that in 1566 iron and hammers were taken to "Creavissham", and the island quarried for the castle.
Prof. John Le Patourel, in his account of Castle Cornet's construction, notes that in 1566, iron and hammers were brought to "Creavissham" and the island was mined for the castle's building materials.