Hi Armando.
Pedro Aguilar was christened on 30 Jun 1873. He was the son of Petronilo Aguilar and Antonia Durán.
Petronilo was the son of Pedro Aguilar and Marcelina Ibarra.
Antonia was the daughter of Pedro Durán and Vicenta Gamboa.
Here's the image of the document:
https://www.familysearch.org/ark:/61903/3:1:939J-4V92-DX
Petronilo and Antonia got married on 4 Feb 1869.
Petronilo was 22 y/o according to the marriage record, he was the son of Mariana Ibarra (deceased), his father is not listed. Antonia was 18.
Here's the image of the document:
https://www.familysearch.org/ark:/61903/3:1:939N-TZST-LD