Dorothy Olson, age 91, of Cooperstown, ND, formerly of Valley City, ND, died Sunday, April 24th at the Griggs County Care Center, Cooperstown, ND.  A funeral service will be held at 5:00 PM Saturday, April 30th at Epworth United Methodist Church in Valley City.  Visitation will be held on Saturday from 2:00 PM until 4:00 PM at Epworth United Methodist Church.  A formal time of sharing memories and stories about Dorothy will begin at 4:00 followed by the funeral service beginning at 5:00 PM.  Interment will be held on Monday, May 2nd at the North Dakota Veteran’s Cemetery in Mandan at 3:00 PM.  An online guestbook and the time of sharing and the funeral service for Dorothy will be livestreamed at www.lerudmathias.com.