John Harold Morecroft


John Harold Morecroft
John Harold Morecroft
Associated organizations
Columbia University


John Harold Morecroft, IRE President, 1924, was an engineering professor at Pratt Institute and Columbia University, and he served as a scientific expert to the U.S. Navy.


John H. Morecroft was born in Staffordshire, England, September 19, 1881. At eight years of age he was brought to the United States by his parents. His early schooling was obtained in the public schools of Syracuse, New York, and later in 1904, he received his E.E. degree from the University of Syracuse. After a year as foreman of a machine shop he spent two years at Syracuse University in the Liberal Arts school from which he was graduated in 1907. During these two years he was an assistant in the engineering school.

From 1907 to 1909 he instructed in the electrical department of the Pratt Institute, spending practically all of his spare time in the laboratory of Dr. M. I. Pupin. In 1909 he became an instructor in electrical engineering at Columbia University, becoming an assistant professor in 1910 and subsequently advancing through the ranks to the position of professor.

During World War I, he was engaged by the U. S. Navy as a scientific expert, and worked on submarine detection schemes; with Professors Pupin and Wills, he developed the supersonic echo method. He was sent to England and France during the latter part of the war as liaison officer for the navy.

He was a Fellow of the Institute of Radio Engineers, American Institute of Electrical Engineers, and the American Physical Society, a member of Phi Beta Kappa, Tau Beta Pi, Sigma Xi, and Epsilon Chi. At the 1929 Commencement, Syracuse University invested him with the honorary degree of Doctor of Science. He served as IRE president in 1924. He wrote several books on radio engineering and served on many committees of both the Institute of Radio Engineers and the American Institute of Electrical Engineers, besides carrying on a wide consulting practice.