When Amanda Theadotia Campbell was born on 24 August 1863, in North Ogden, Weber, Utah, United States, her father, Grant Campbell, was 34 and her mother, Caroline Elizabeth Hubbard, was 21. She married James Merritt Wells on 15 December 1880, in Montpelier, Bear Lake, Idaho, United States. They were the parents of at least 3 sons and 9 daughters. She lived in School District 159 Winnett, Petroleum, Montana, United States in 1920 and Henefer, Summit, Utah, United States in 1930. She died on 5 January 1943, in Salt Lake City, Salt Lake, Utah, United States, at the age of 79, and was buried in Salt Lake City, Salt Lake, Utah, United States.