William Le Roy Emmet

William Le Roy Emmet (July 10, 1859 – September 26, 1941) was an electrical engineer who made major contributions to alternating current power systems including the design of large rotary converters. Biography Emmet was born in New Rochelle, New York to William Jenkins Emmet and Julia Colt Pierson. He is the great-grandson of Thomas Addis Emmet, a lawyer, who was an elder brother of executed Irish nationalist Robert Emmet. His father's parents were Robert Emmet and Rosina Hubley. His mother's parents were Josiah G. Pierson and Julia Colt. His sisters included noted portrait artists Rosina Emmet Sherwood, Lydia Field Emmet and Jane Emmet de Glehn.