Francisco Delgadillo y Anna María Ruiz

Hi,
Is any one out here researching the Delgadillo's of Aguatinta, Lo De Carrera, Nochistlán, Mechoacanejo y Teocaltiche? Or can Help us locate missing information?

Several of my distant cousins and I who have Family trees have been Stuck for a long time now on Francisco Delgadillo and Anna María Ruiz; born circa 1745. Non of their kids records contain information of their grandparents, nor have we been able to find the Marriage Records for Francisco and Anna Ma. There are a couple of Franciscos born around the time in Teocaltiche but I do not know if it is one of them or not at all. Does any one have any information that can help us or suggestions?
Thanks,
SIS