When Mary Katherine Foust was born on 5 September 1912, in West Virginia, United States, her father, Harry Edney Foust, was 33 and her mother, Elizabeth Della Smith, was 28. She married Paul H Shaffer on 9 July 1934, in Pennsylvania, United States. She lived in Judicial Township 15, Kern, California, United States in 1940 and Boron, Kern, California, United States in 1950. She died on 21 February 1999, in Chandler, Maricopa, Arizona, United States, at the age of 86, and was buried in National Memorial Cemetery of Arizona, Phoenix, Maricopa, Arizona, United States.
Probably an altered form of Faust .