Otto Frederick Armstrong(14 Jan 1895 - 18 Jul 1961)
Ruth M. Ovelmen(5 Sep 1900 - Dec 1978)
m. 24 Dec 1947
Robert D. Cooper
Juanita Jeanne Armstrong
b. 28 Aug 1921, Marseilles, LaSalle Co., IL
d. 3 Aug 2013, Princeton, Bureau Co., IL
b. 25 Mar 1925, Ottawa, La Salle Co., IL
d. 29 Sep 2007