interesting slice (among many) of Northwest Coast History:Wilson Duff and Michael Kew: 1957 article on SGang Gwaay

Duff and Kew describe in full the environment and setting of Anthony Island, the town site and associated archaeological sites, and also gives a full account of the early period conflict between Haida and trading ships. In particular, vivid detail is given of the rise and fall of Chief Koyah and the serial raids he led on trading ships...