When Mary Susan Stubbs was born on 2 January 1861, in McDonough, Illinois, United States, her father, James M. Stubbs, was 41 and her mother, Susan Jane Mackey, was 38. She married Jesse Lincoln Hainline on 27 December 1876, in McDonough, Illinois, United States. They were the parents of at least 5 sons and 5 daughters. She lived in Emmet Township, McDonough, Illinois, United States for about 30 years and Sciota, McDonough, Illinois, United States in 1937. She died on 26 June 1937, in Macomb, McDonough, Illinois, United States, at the age of 76, and was buried in Spring Creek Cemetery, Emmet Township, McDonough, Illinois, United States.