When Sara Jane Thompson was born on 21 October 1841, in Union Township, Marshall, Indiana, United States, her father, William Edward Thompson, was 23 and her mother, Martha McDonald, was 21. She married James Leroy Mosher on 16 August 1862, in Marshall, Indiana, United States. They were the parents of at least 2 sons and 3 daughters. She died on 13 February 1921, in Marshall, Indiana, United States, at the age of 79, and was buried in Union Township, Marshall, Indiana, United States.