When Mildred Emma Reilly was born on 10 July 1914, in Westcliffe, Custer, Colorado, United States, her father, James Lawrence Reilly, was 39 and her mother, Elizabeth Isabelle Mattes, was 28. She lived in Custer, Colorado, United States in 1920 and Silver Cliff, Custer, Colorado, United States in 1930. She died on 26 April 2002, in Pueblo, Pueblo, Colorado, United States, at the age of 87, and was buried in Pueblo, Pueblo, Colorado, United States.