Fort Langley in British Columbia was built by Hawaiian carpenters (a trading post and H. B. farm headquarters, not a military fort). Barreled salmon, agricultural produce, lumber, etc., were sent to the Hudson's Bay outlet in Honolulu. Young Hawaiian men, after the breakdown of the social order and kapu, needed work, and the arrangements made by the Hawaiian crown with Hudson's Bay and other hirers provided the jobs. Many became skilled at various jobs. Many were sailors, harpooners, etc. The worst off perhaps were those working for the Californios in the hide industry. (See Dana, "Two Years Before the Mast.) All contracts had a termination date, but this was not always observed, as noted by mg. The contracts and other papers are preserved in the Hawaiian Archives in Honolulu.

But this belongs in another thread, and much has been gone over before.