Alvin Kaufman / American Standards Association / Beverly J. Dalton / C. R. Hubbard / Clarence Michael Harrer / Forrest Theodore Moyer / J. L. Eakin / W. T. Millar / Worna G. Diamond / United States. Bureau of Mines / Howard Phillips Hamlin / J. S. Miller / Robert N. Roby / Thomas R. Early / Virginia E. Wrenn / Elizabeth K. Elsner / Harry F. Robertson / V. Vern Hutchison / William C. Henkes / P. Biggs |