She appears in the 1920 & 1930 census with Frank Mumma. Her birth is about 1895 from the census. The SSDI reveals a Olga Mumma which must be he
Her maiden name is determined from her son's death listing in the California Death Index.
1. Audrey H. MUMMA (b. 5 MAR 1920, Bronx, New York City, NY - d. 5 APR 2008, Port Orange, FL)
2. Donald Francis MUMMA (b. 5 AUG 1925, Bronx, New York City, NY - d. 29 JAN 1986, Ventura Co., CA)