Everett Perry Carman / Hiram Brown Humphrey / Robert L. Beatty / Seth T. Reese / Simon Harry Ash / Theron Albert Klinefelter / United States. Bureau of Mines / E. G. Graf / Hazel J. Stratton / Henry A. Dierks / Howard Phillips Hamlin / Naomi W. Kearney / Virginia E. Wrenn / Elizabeth J. Reid / P. S. Miller / Richard Clarke Corey | 