When Margaret Ann Peterson was born on 20 March 1870, in Peterson, Morgan, Utah, United States, her father, Alma Patten Peterson, was 20 and her mother, Margaret Matilda Green, was 16. She married Levi Barrass Butterfield on 17 December 1890, in Logan, Cache, Utah, United States. They were the parents of at least 4 sons and 6 daughters. She lived in Almy, Uinta, Wyoming, United States for about 10 years and Cowley, Big Horn, Wyoming, United States in 1920. She died on 14 November 1926, in Salt Lake City, Salt Lake, Utah, United States, at the age of 56, and was buried in Taylorsville Memorial Park Cemetery, Taylorsville, Salt Lake, Utah, United States.