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3by Clapp, Frederick G (Frederick Gardner), 1879-1944, Clapp, Frederick G (Frederick Gardner), 1879-1944, Clapp, Frederick G (Frederick Gardner), 1879-1944“...Canada Mines Branch...”
Published 1914
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9by Cole, Lionel Heber, 1883-, Cole, Lionel Heber, b. 1883, Rogers, Robert Archibald, 1890-“...Canada Mines Branch...”
Published 1933
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14by Hudson, Joseph G. S 1859-, Hudson, Joseph G. S., 1859-, Hudson, Joseph G. S., b. 1859“...Canada Mines Branch...”
Published 1913
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