Casillas, Delgadillos in Jalostotitlan, Jal.

Is anybody researching Casillas or Delgadillo lines in Jalostotitlan? I've
just discovered that ancestors from there:

Juan Vicente Delgadillo b 5 Nov 1727>Joseph Delgadillo y Maria Tereza
Rodriguez.
md 19 Jun 1752 to Josepha Quiteria
Casillas b 2 Jun 1725>Juan Dominguez Casillas y Clemensia Flores
Estrada.
I don't have any Jalostotitlan films as yet.