When Delmer Hector Morrison was born on 22 October 1868, in Milan, Rock Island, Illinois, United States, his father, Isaac Newell Morrison, was 28 and his mother, Clarissa Maretta McRoberts, was 23. He married Ida May Redfield on 2 July 1899, in South Dakota, United States. They were the parents of at least 1 son. He lived in School District 17 Paragon, Custer, Montana, United States in 1930 and School District 17H Hardin, Custer, Montana, United States in 1940. He died on 16 October 1950, in Big Horn, Montana, United States, at the age of 81.