When Susan or Susie McDonald was born on 4 October 1868, her father, James McDonald, was 37 and her mother, Susan McGinn, was 30. She married Peter Ashcroft on 30 July 1891, in Clear Creek, Colorado, United States. They were the parents of at least 3 sons and 2 daughters. She lived in Mesa, Colorado, United States in 1930 and Election Precinct 8 Collbran, Mesa, Colorado, United States in 1940. She died on 30 April 1950, in Grand Junction, Mesa, Colorado, United States, at the age of 81, and was buried in Plateau City, Mesa, Colorado, United States.