TEWKSBURY -- J. Robert A. Lemieux, 74, a resident of Tewksbury for 21 years, died Monday, Oct. 9, at his home. He was the husband of Genevieve A. (Sefsick) Lemieux, to whom he was married for 52 years.He was born in Lawrence on May 19, 1932, son of the late Alphonse C. Lemieux and Ruth A. (Hayes) (Lemieux) Hurd. He was raised and educated in Lawrence. He attended St. Mary School, and graduated from Lawrence High School in 1950. Before moving to Tewksbury in 1985, he lived in Andover for 26 years. During the Korean War, Mr. Lemieux served in the Army with the Army Security Agency. He was awarded several decorations including the National Defense Service Medal and the Good Conduct Medal.Following his honorable discharge, he received his bachelor's and master's degrees in electrical engineering from the former Lowell Technological Institute.Before retiring in 1995, Mr. Lemieux was a professor in the School of Electrical Engineering at the University of Lowell. According to his family, he designed and developed the curriculum, and oversaw the operations for the Electrical Engineering Department's evening-school program at the University of Lowell.He was a communicant of St. William Church in Tewksbury. He was also an avid lifelong enthusiast of origami.Besides his wife, survivors include two sons and a daughter-in-law, Scott W. Lemieux of Wilton, N.H., and James M. and Michelle Lemieux of Windham, N.H.; a sister and brother-in-law, Marilyn E. and Robert Findlay of Verona Island, Maine; a granddaughter, Brennan Woo of Flowermound, Texas; and several nieces and nephews.He was also the father of the late Barry R. Lemieux, and brother of the late Frank L. Lemieux.