When Mary Blackburn was born on 12 November 1769, in Cecil, Maryland, United States, her father, John Blackburn, was 24 and her mother, Mary Woods, was 15. She married Solomon Eagon on 12 November 1788, in Cecil, Maryland, United States. They were the parents of at least 4 sons and 8 daughters. She lived in Beaver Township, Guernsey, Ohio, United States in 1850. She died on 25 October 1857, in Oskaloosa, Mahaska, Iowa Territory, United States, at the age of 87, and was buried in White Cemetery, Oskaloosa, Mahaska, Iowa, United States.