AIME Erskine Ramsay Medal* in 1961
Donald Markle was born in Hazleton, Pa., in 1892, and received a Ph.B. from Yale Scientific School in 1914. He spent two years at Lehigh University, studying mining.
In 1916, he became Assistant Mine Foreman at the Cranberry Colliery of Lehigh Coal and Navigation Co., and, later, was promoted to Superintendent of Preparation.
During World War I, Mr. Markle served overseas, successively as Second Lieutenant, Captain, Major and Commanding Officer of the 4th Division Ammunition Train, until 1919. He received the Purple Heart and a Citation from General Pershing for Meritorious and Conspicuous Services. After the war, he spent two years as Special Engineer in Charge of Research, Preparation and Use of the Fine Sizes of Anthracite, with the Hμdson Coal Company.
From 1921 until 1926, he was President and Chairman of the Board of the Fuel Service Co., of which he was one of the founders. He then accepted the Presidency of the Jeddo-Highland Coal Co. He is the third generation of Markles in this office. Under his management, this company improved its breakers by installing Chance Cone Cleaning Equipment and Concentrating Tables. Jeddo managed the operations of Coxe Brothers & Co. from 1931 to 1936 for the Lehigh Valley Railroad and then leased the principal properties. The company also purchased the Hazle Brook Coal Co.
Mr. Markle is now Chairman of the Board and President of Jeddo-Highland Coal Co., Raven Run Coal Co., and Jeddo Tunnel Co. He is on "'the Board of several other companies. His research has led to valuable patents and new methods.
He has been a Member of AIME since 1917.