Tomas Valdes, Jerez, Zacatecas, Mexico

Hello Everyone, I have just recently started researching my ancestry. So happy to find this site so specific to the area I'm researching. I have been trying to move passed my gr gr grandfather Tomas Valdes, b. 1835 in "Jerez, y vecino de los Cuervos" according to his marriage documents. Also, according to the marriage documents he was "hijo ligitimo de Jose Maria Valdes y Estefana Muro". However, on his first child's baptism record his father is listed as Teodoro Valdes and Maria Varela. Later baptism records for his children show Jose Maria as his father again. I have not been able to find any birth or baptism records on Tomas Valdes to confirm who his father was. Have looked in Family Search's records but no success. I would appreciate any help in this search!

Thanks