Jonathan Edwards, An Illustrated History of Spokane County (1900); Spokane Press, 1902

From the research file (research/mcmillan/McMillan_Frost_Master_Research.md, October 2026). Edwards: “Spokane Marble Works, S. G. Frost, Proprietor, Wholesale and Retail Marble and Granite Dealer… Mr. Frost purchased it ten years ago. It is located at 0827 Monroe street.” Spokane Press, 14 Nov 1902, p. 1: “CHICKENS CLAIMED. S. G. Frost, owner of the chickens taken by Prisoner John George, identified his property today.”