When Mabel Sophia Hoffman was born on 16 June 1898, in Dexter, Stoddard, Missouri, United States, her father, George Leopold Hoffmann, was 23 and her mother, Bertha Maria Wilhelmine Arft, was 19. She married Philip Christian Henry Lochhaas on 9 April 1917, in St. Louis, Missouri, United States. They were the parents of at least 1 son. She lived in Central Township, St. Louis, Missouri, United States in 1910 and Bonhomme Township, St. Louis, Missouri, United States in 1930. She died on 24 February 1963, in St. Louis, Missouri, United States, at the age of 64, and was buried in St. Paul, St. Charles, Missouri, United States.