EDWARDS MINE (Holding of the St. Joseph Lead Co.) Barker District. Judith Basin County. Minerals Yearbook 1944. Page 382. Ore and clean-up material shipped to East Helena smelter. (Lead ore).
WPA, "EDWARDS MINE" (1944). Minerals Yearbook, All. 342.
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Edwards Mine, Barker District, Judith Basin County, St. Joseph Lead Company, lead ore, Helena Smelter