1878 J. G. Brady Let. May in S. Jackson (1880) vii. 209 A silver salmon, weighing thirty-eight to forty pounds, is sold for fifteen or twenty cents.
1882 D. S. Jordan & C. H. Gilbert 307 Oncorhynchus kisutch, Silver Salmon.
1901 26 Mar. 5/1 The silver salmon or coho..are freely taken by means of spinning.