MIT researchers calculate river networks’ movement across a landscape.
William "Ben" Alexander, a retired Lincoln Laboratory employee and World War II Navy veteran, died Aug. 21. He was 82. He is survived by his wife, Virginia M. Gregory-Alexander of Woburn; a son, Matthew Gregory Alexander of Woburn; two daughters, Janet Garrity of Woburn and Carol Vigilante of Duxbury; a brother, Benjamin Alexander of Texas; two sisters, Sara Elmore and Betty Holbrook of McKinney, Texas; 10 grandchildren and many great-grandchildren.
Frederick D. Wilson, of Everett, a retired MIT employee of 43 years and Air Force veteran of the Korean War, died Sept. 9. He was 72. He is survived by his wife, Andrea Wilson; two sons, Frederic M. Wilson of Everett and David S. Wilson of Korea; two brothers, John Wilson of Billerica and Irving G. Wilson of Peabody; and three grandchildren. Wilson, a research specialist in materials science and engineering, received the James N. Murphy award in 1994.