Halsey, Frederick Arthur (12 July 1856–20 October 1935), mechanical engineer, journalist, and prominent opponent of the metric system, was born in Unadilla, New York, the son of Dr. Gaius Leonard Halsey, a physician, and Juliet Carrington. He attended Unadilla Academy and went on to study engineering at Cornell under the noted professor John E. Sweet, with whom he maintained close contact throughout his career....