Here is your family in the 1930 census: 1930 United States Federal Census > Texas > Bexar > San Antonio > District 22 > Page 12B Dwelling 137/Family 206 7028 So. Pecos St (Rents for $7.50/month) Pedro Hernandez, head, Mexican, 28, married at age 19, reads, writes, he and parents b Mexico, speaks Spanish, immigrated 1916, alien, laborer for McKensie Const. Co. Genoveva, wife, Mexican, 26, married at age 17, cannot read or write, b Tx, parents b Mexico, speaks Spanish Josefina, daughter, 7, b TX, speaks Spanish Concepcion, daughter, 4 months, b TX
Since you know Pedro and Genoveva's death dates, have you ordered their death certificates?Those certificates should give you the names of their parents, to the best knowledge of the informant.
You might also order their Social Security Applications.They filled these out on their own, and it should also include the names of their parents. From the Social Security Death Index: Pedro Hernandez SSN:455-03-0276 Last Residence:78207San Antonio, Bexar, Texas, United States of America Born:14 May 1902 Died:Apr 1987 State (Year) SSN issued:Texas (Before 1951 )
Genoveva Hernandez SSN:460-17-1924 Last Residence:78207San Antonio, Bexar, Texas, United States of America Born:3 Jan 1904 Died:Mar 1974 State (Year) SSN issued:Texas (1973 )