Gardner F. Williams

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1	“American Mining Engineers in the Kimberley and Witwatersrand Mines circa the turn of the 20th Century” By Dr Morley Nkosi Add to Reading List Source URL: www.imhc.co.za Language: English - Date: 2012-05-02 10:26:48 Occupational safety and health Hermann Eckstein John Hays Hammond School of mines Jules Porgès Coal mining De Beers Danie G. Krige Gardner F. Williams Mining Mining engineers Randlords