When Amanda Ellen Wiley was born on 3 April 1849, in Indiana, United States, her father, Wilford M Wiley, was 21 and her mother, Mary Melissa Wiley, was 15. She married William S. Harmon on 10 October 1867. They were the parents of at least 4 sons and 2 daughters. She lived in Banner, Nebraska, United States in 1900 and Portland, Multnomah, Oregon, United States for about 10 years. She died on 10 March 1933, in Long Beach, Los Angeles, California, United States, at the age of 83, and was buried in Long Beach, Los Angeles, California, United States.