Thomas DeLaMare was born in Tooele, Utah Territory, on 26 July 1864 to Philip and Marie Chevalier DeLaMare. He worked as a blacksmith and was also involved in various irrigation projects. He married Loretta McKendrick. DeLaMare was killed in an automobile-pedestrian accident in Salt Lake City, Utah, on 4 April 1944.
 “Auto Injuries Claim Life of S. L. Man,” Salt Lake Tribune, 5 Apr. 1944, 7.