In December 1971, Helen and Harry moved to Exeter. There they celebrated their Golden Wedding Anniversary on July 29, 1973. They were married 55 years at the time of Harry's death. (Milligan, p 226).
[S219] Milligan Centennial History Book Committee HISTORY OF MILLIGAN, NEBRASKA 1888-1988 (Walsworth Publishing, Marceline, MO), pg 225 (Reliability: 3).