Juan Antonio Gallegos and Antonia De Ribas

I have hit a brick wall for several months. I'm trying to find information about my 6th great grandfather Juan Antonio Gallegos (born abt 1690 - 1700) and his wife Antonia De Ribas. I have found several of their sons and daughters, including my 5th great grandfather, Miguel Deonicio Gallegos; they all were baptized in San Felipe, Guanajuato and born in La Quemada, Guanajuato and El Estano, Guanajuato. Any help will be greatly appreciated.