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Jan 1, 1932

[Executive E. DEGOLYER, Chairman SYDNEY H. BALL WILLIAM H. Bassett RICHARD PETERS, JR. J. V. W. REYNDERS Finance GEORGE D. BARRON, Chairman H. A. GUESS GEORGE OTIS SMITH]

Jan 1, 1928

Jan 1, 1946

By M. A. Grossman

Jan 1, 1947

Jan 1, 1922

Jan 1, 1968

By M. A. Grossman

Jan 1, 1947

Jan 1, 1935

Jan 1, 1910

Jan 1, 1890

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Jan 1, 1907

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Jan 1, 1907

By Robert Glass Cleland

[MINING DIVISION GENERAL WESTERN ADMINISTRATION Harrison M. Lavender, Vice-President and General Manager Charles R. Kuzell, Assistant General Manager Walter C. Lawson, Assistant to Vice-president and Genera1 Manager]

Jan 1, 1952

Jan 1, 1967

Jan 1, 1932

Jan 1, 1881

COAL DIVISION Established as a Division September 20, 1929 A. Lee Barrett, Chairman Ralph E. Kirk, Chairman-elect David R. Mitchell, Secretary-Treasurer Professor of Mining The Pennsylvania State College State College, Pa.

Jan 1, 1952

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Jan 1, 1938

Jan 1, 1941