Listed at age 12 in the 1920 census with her parents, having immigrated in 1908.
Mary is listed in the 1930 census as age 22, born in California, married 1 yr to Antonio Bernardo (23, TX) with daughter Angelina (9 mos, CA). This seems to have many errors, as their surname should be Lopez, Mary was born in Mexico, as was her husband who is likely Bernardo Lopez.
She had another daughter, Louise, later that year before being divorced, with Bernardo going to Texas.
Mary then had a daughter, Petra, with a Mr. Riso in 1938, and it is unknown whether they were married.
She is then listed in the 1950 census as Mary Arroyo (42, CA) wife of Cipriano Arroyo (58, MEX), with daughter Cecile (6, CA) and foster daughter Petra Riso (11, CA).
They were later married (remarried?) on 18 May 1966 in Kings Co, CA.
[Obituary] The Lemoore Advance - Thursday, 13 April 1989, pg 3
Mary Arroyo
Mary Arroyo of Lemoore died Saturday April 8 1989 in a Corcoran hospital. She was 80. A native of Lemoore she had lived here all her life and was a homemaker. Mrs Arroyo was a member of St Peter’s Catholic Church and the Club Social Beneficiario. She is survived by four daughters Angie Rodriquez of Whittier, Louise Chavez of Merced, Petra Parra of Hanford, and Cecile Zaragoza of Lemoore; two brothers, John Orsaba of Lemoore and Jim Orsaba of Fresno; three sisters, Amy C'kmmLs of Hanford, Isabel Alniuiii and Ascension Mazuka both of Lemoore; 14 grandchildren 12 great-grandchildren and two great great-grandchildren. The rosary was recited Tuesday April 11 in St Peter’s Church where Mass of the Resurrection was recited Wednesday afternoon. Burial to be in Lemoore Cemetery.