Andres de la Torre/Maria Demetria Montes... Tepetongo, Zac Mex

I am working on the line of Andres de la Torre and Maria Demetria Montes from Tepetongo, Zac approx birth dates conflicting.. IF there first son Pedro de la Torre/Maria Petra Vera abt 1700 and 1705 is correct then it would be impossible for Andres and Demetria next children Josefa Refugio Simona born 1783 and Joseph Pedro Celestino born 1788.
Pedro and Maria Petra Vera have 4 children born between 1820-1835 all claiming Andres de la Torre and Maria Demetria Montes as grandparents! I'm praying someone else has figured this out!
HELP!
Linda in Boulder City