Welcome Marcos Antonio!
I hope you find the following sources helpful:
1 -Death record for Antonio Sandoval: https://www.familysearch.org/ark:/61903/3:1:33S7-9RGS-815
2 - Death record for Marcos Zambrano:
https://www.familysearch.org/ark:/61903/3:1:33SQ-GPKF-97L3
3 - Marriage record for Juan Zambrano and Zenobia Espinosa:
https://www.familysearch.org/ark:/61903/3:1:9392-VV9S-5Z
4 - Dispensation for Germán Zambrano & María Benita Díaz (includes a family tree)
https://www.familysearch.org/ark:/61903/3:1:9392-XWSB-RS
5 - Marriage record for for Germán Zambrano & María Benita Díaz
https://www.familysearch.org/ark:/61903/3:1:9392-V296-6B
