Hit a brick wall?

I have been trying to find some info on Miguel Vaez & Rosa Mercado but have not progressed.Here is the following info I have

Michaela Vaez married to Melchor Perez Ynfante

https://familysearch.org/pal:/MM9.3.1/TH-1-18457-25708-28?cc=1874591&wc=12505647

I descend from both of these indivduals.This marriage document gives the location of where is Miguel Vaez and Rosa Mercado vecinos which in this case it's Real Minas De Fresnillo?

Juan Gutierres De Hermosillo married to Gertudis Vaez

https://familysearch.org/pal:/MM9.3.1/TH-1-18457-25382-14?cc=1874591&wc=M99L-8LJ:n2080424520

Juan Vaez/Baez married to Maria Theresa De Placencia

https://familysearch.org/pal:/MM9.3.1/TH-1-18457-24895-14?cc=1874591&wc=M99L-8LJ:n2080424520

And that is all the info I have.If anyone can please help me get pass this brick wall.