British/Irish nochistlan?

Hi,

1. Has anyone with Ramirez surname from Nochistlan done a DNA test and found British/Irish dna?
2. Does anyone have info about parents for Antonio Ramirez (b. ~1733. d 27 Jun 1809 in Las Animas) or his wife Maria Gertrudis Rodriguez?
3. Any other thoughts based on below?

I ask this because dna test came back with some British/Irish dna. I filtered my dna matches by surname. All the common surnames for that area came back 0.0%, except for people who listed Ramirez. The Ramirez surname is only on one side of my family, which was expected based on the maternal vs paternal dna.

Based on the dna%, that they are great x5 grandparents, and how many children of theirs I descend from, I am guessing one of them is 25 or 50% British/Irish.