Giles James Greenway was born on July 2, 1924 on a farm north of Mount Vernon, to William and Elsie (Swancott) Greenway. He attended country schools and graduated from Mount Vernon High School in 1943. Since 1943, he farmed northwest of Mitchell. On November 24, 1946, he married Lillian Olson at the United Methodist Church Parsonage in Mitchell.
He enjoyed bowling for many years and also square dancing. He served on several country school boards and the Mount Vernon School Board, Beulah Township Board, the Federal Land Bank Boards in Mitchell and Omaha. He was a longtime member of the First United Methodist Church in Mitchell.
He is survived by his wife, Lillian; two grandsons: Clint Greenway and Briar Greenway; and one granddaughter, Amy Goembel; two great-grandchildren; two sisters: Gwen Tillotson of Mitchell and Lavelle DeKramer of Canistota; one brother, Tom (Janice) Greenway of Mitchell; one sister-in-law, Lilas Greenway, Mitchell; two daughters-in-law: Dawn Greenway and Mary Lou Greenway, both of Mitchell and many in-laws, nieces and nephews.
He was preceded in death by two sons: Ron and Robert; one brother, William; his parents; his mother and father–in-law, Hans and Lela Olson; his sister-in-law, Gertrude Twombley; and one daughter-in-law, Char Greenway.