E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
At Fort Vancouver the medium of intercourse is a mixture of Canadian-French, English, Indian, and Chinese. An Englishman goes by the name of Kint-shosh, a corruption of King George; an American is called Boston; and the ordinary salutation is clak-ho-haryah. This is explained by the fact that the Indians, frequently hearing a trader named Clark addressed by his companions, Clark, how are you? imagined this to be the correct English form of salutarion. (Taylor: Words and Places.)