Using FamilySearch to find photocopies of actual documents,
I've tracked my lineage to Ramon Sifuentes, married Oct 4, 1846 to Guadalupe Ayala, in San Juan del Rio.

All ancestors up to this point I am 95% certain of. The next I'm maybe 75% sure of.
By reading his Ramon's Catholic Church Marriage Document, I then found his Father: (Juan) Manuel Sifuentes (Correa) , born in Gamon, Durango.

I found him in a Pedigree Tree on FamilySearch with extensive sources, and provided for two more generations. Manuel married twice, in Panuco De Coronado. He died there as well. His Father is Juan José Sifuentes Del Prado, born in Pánuco de Coronado, Durango, Mexico. And his father, Miguel Sifuentes, born about 1730, unknown where. The only document I have of him is his Marriage in San Juan del Rio, to Maria Rosalia Del Prado, 1757.

Miguel Sifuentes is the farthest back I have reached in my online research, I can find no more of him.
I was wondering if anyone else here had any information on him or the Sifuentes Family. Starting with Ramon Sifuentes, I believe, the Sifuentes Family began to be documented in San Juan del Rio, while living in El Resbalon.