Mary Ruth (Hartman) Thompson, 87, of 15th Road, Plymouth, died on Feb. 26, 2015, at 1:17 a.m. at the Hickory Creek Nursing Home in Rochester. She had been in declining health for several months. Mary was born on Nov. 27, 1927, in Culver, to Lawrence and Orpha (Ringer) Hartman. She had lived in Marshall County …read more.