Shortly afterwards he was called to active duty to the Army Air Force and served as a navigator aboard a B24 Bomber flying missions over Germany. Gene served with the Army Air Force until January of 1946 at which time he returned to work for IDOT.
In 1937, he married Emma Kathryn Becker and continued to work for IDOT. After three more years he returned to the University of Illinois and graduated with a degree in Civil Engineering. Following graduation he returned to work for IDOT.