Collins, Willis Mentioned, Idaho Springs, Colorado. 1881. p.3 c.2 Manager, Kalo factory, Empire, Colorado. Inventor, Ka1oo explosive, Empire, Golo. Erects "Kaloo" powder ' factory, Empire, Colo. Denver, registers with News. R. M. News. Aug. 16, 1883 p.8c.3. 0
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