José Nuñes Martínez - Parent connection?

Without knowing the line I would guess the source only tells who he is the grandson of.

I have made such a connection myself, even without know the gender of the parent.

Randy and Bjorn, we have np proof what so ever that the people shown were the parents of Jose Nunes Martines (you note he signed his name with an 's' as you may have noticed his fathers name is not in the Ketubah