Vallarta family from Hostotipaquillo, Jalisco

I have come against a brick wall with the Vallarta Family from Hostotipaquillo, Jalisco.

I am trying to find the ancestors of Dimas Vallarta, who may be the son of Rafael Vallarta and Maria Michaela Palacio.

Dimas (son of Rafael and Ma. Michaela) had a hija natural by Sebastiana Olmeda, Genoveva, baptized 3 Jan 1843; he also had two more children by Manuela Alba, Maria Juana Guadelupe (bapt 13 Jun 1853) and Maria Lina (bapt 24 Sep 1854).

I believe this same Dimas had a son, Siriaco born abt 1856/61, with spouse Bibiana Guevarra. I do not know if they were married.

Siriaco married Jacinta Coronel, date unknown, and had at least six children baptized in Hostotipaquillo between 1881 and 1902.

There is an upper class Vallarta family in Hostotipaquillo, who are usually named as Don/Dona in the records, but I am unable to place neither Dimas nor Rafael in this family. None of the few references I have found refer to Dimas or his father, Rafael, as Don. Thus, I suspect this is a different family.

Any help would be appreciated.

George Fulton
Pleasanton, CA