When Clara Mabel Lamma was born on 28 July 1888, in Nebraska, United States, her father, Latta Wesley Lamma, was 32 and her mother, Anna Hanson, was 22. She married Harry Austin Hixson on 12 July 1934, in Los Angeles, California, United States. She lived in Pomona, Los Angeles, California, United States in 1930 and Upland Judicial Township, San Bernardino, California, United States in 1940. She died on 23 September 1976, in Upland, San Bernardino, California, United States, at the age of 88.