Gomes' of Tecolotlan, Jalisco

I was going through the latest list of Matrimonial Dispensations, thanks to the hard work of our friends of NR, and researched the dispensation of Jose Altamirano and Maria Rita Garcia de Alba:

https://familysearch.org/pal:/MM9.3.1/TH-1-18415-2350-34?cc=1874591&wc=12512799

I found the information mistaken as Francisca Gomes (Married to Felipe Garcia de Alba) is actually the daughter of Juan Gomes-Garcia and Maria Velasco; not Pedro Gomes and Maria Contreras, as indicated in the Dispensation. Now my question is how are Juan Gomes-Garcia and the Pedro's (father and son) related? Any help would be greatly appreciated.
Deedra Corona