Sonja Hefty, age 83, of Valley City, ND, died Wednesday, August 11th at Mercy Hospital in Valley City.  A memorial service will be held at 2:00 PM Saturday, August 21st at Our Savior’s Lutheran Church in Valley City.  Visitation will be held one hour before the service at the Church on Saturday afternoon.  Burial will be in the North Dakota Veteran’s Cemetery, Mandan, ND.