When Fay Loose was born on 22 October 1891, in Provo, Utah, Utah, United States, her father, Charles Edwin Loose, was 38 and her mother, Mary Jane Patten, was 28. She married William John Stiehl on 19 September 1911, in Provo, Utah, Utah, United States. They were the parents of at least 1 son and 2 daughters. She lived in Los Angeles, Los Angeles, California, United States in 1930 and Salt Lake City Ward 4, Salt Lake City, Salt Lake, Utah, United States in 1940. In 1926, at the age of 35, her occupation is listed as opera singer in New York City, New York, United States. She died on 18 January 1958, in Palo Alto, Santa Clara, California, United States, at the age of 66, and was buried in Provo, Utah, Utah, United States.