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[Adams, Douglas K General Electric Co., P.O. Box 2331; Denver 1, Colo. Allan, Andrew Thompson Creek Coal & Coke Corp., Glenwood Springs, Colo. Allen, Earl W Mine Safety-Appliances Co.; 257 Rio Grand St., Salt Lake City, Utah Alston, George L Mine Safety Appliances Co., 201 N. Braddock, Pittsburgh 8, Pa. Anderson, Nephi W Standard Colombine Coal Co., Scofield, Utah Anderson, W. J Texaco, Inc., 845 N. 5th E., Price, Utah Ankeny, Marling J U.S. Bureau of Mines, 1822 Metzerott Rd., Adelphi, Md. Archer, Bryon J., Jr Peabody Coal Co., 421 Glenwood St., Grand Junction, Colo. Arentzen, E. M Lee-Norse Co., P.O. Box 582, Charleroi, Pa. Arentzen, L. E Lee-Norse Co., 6030 W. 55th P1., Arvada, Colo. Arentzen, Rolf F Lee-Norse Co., Box 582, Charleroi, Pa. Artis, Cliff E Big Horn Coal Co., 247 Sherman Ave., Sheridan, Wyo. Atchison, Lee Atchison Construction Co., Drawer D, Aztec, N. Mex.]

Jan 1, 1965

[Adams, Douglas K General Electric Co., P.O. Box 2331, Denver 1, Colo. Adams, Kenneth L Peabody Coal Co., 301N, Memorial Dr., St. Louis, Mo. 63102 Allen, Earl W Mine Safety Appliances Co., 257 Rio Grand St., Salt Lake City, Utah Allen, Dr. Harry C U. S. Bureau of Mines, Washington, D. C. 20906 Alston, George L Mine Safety Appliances Co., 201 N. Braddock, Pittsburgh 8, Pa. Archer, Bryan J., Jr Peabody Coal Co., 421 Glenwood St., Grand Junction, Colo. Arentzen, E. M Lee-Norse Co., P.O. Box 582, Charleroi, Pa. Arentzen, L. E Lee-Norse Co., 6030 W. 55th Pl., Arvada, Colo. Arentzen, Rolf F Lee-Norse Co., Box 582, Charleroi, Pa. Artis, Cliff E Big Horn Coal Co., 247 Sherman Ave., Sheridan, Wyo. Atchison, Lee Atchison Construction Co., Drawer D, Aztec, N. Mex.]

Jan 1, 1967

Jan 1, 1941

Houston T. Aars Carter Mining Co. Sundance Rt. Moorcroft, WY 82716 Charles R. Ahlbrecht Western States Surveying Inc. 7030 So. Yosernite Englewood, CO 801 12 Dean Albon Monsanto Co. 800 No. Lindberg St. Louis, MO 631 67 Robert Anderson Mobil Oil Producing Inc. POB 17772 Denver, CO 8021 7 Stephen P. Antony Orbital Engineering 6789 So. Yosernite Englewood, CO 801 12 David Ariotti Boyle Mining Engineering Service Rt. 1 Box 15M Helper. UT 84526 Douglas Auck Falkirk Mining Co. 103 McKinley Ave. Underwood, ND 58378 Roger Backrnan N. D. Crockett & Assoc. 3467 Sorenson Way Salt Lake City, UT 84109 Richard Bailey Continental Conveyor & Equip. Co. 602 Park Point Drive Golden, CO 80401 Earl W. Baker Baker & Co. 4965 Jackson St. Denver, CO 80216 Allen P. Barber San Juan Coal Co. 705 Ocio Farrnington, NM 87421 Edward Barker Process Equipment Builders POB 7506 Paducah, KY 42001 Larry Barton Carter Mining Co. 101 5 Teewinot Circle Gillette, WY 82716 Hugh Bastian American Carbide Corp. POB 2650 Ronald N. Batdorf Monsanto Co. Box 701 Saratoga, WY 82331 Georgetown, KY 40321 Doris A. Bauer Mobile Oil Corp. POB 17772 Denver, CO 80217 Jan Beam Blount International Ltd. 2570 So. Dayton Way #E-308 Denver, CO 80231 Mac Beaudry Falkirk Mining Co. 1029 Cannon Ln. Washburn, ND 58527 R. C. Beerbower Gates Engineering Co. Drawer A Beckley, WV 25801

Jan 1, 1982

Jan 1, 1924

By Bret K. Clayton

Jan 1, 2004

Jan 1, 1959

Jan 1, 1953