Dear Debbie, My great-greatgrandmother was Guadalupe Alanis. She married Ambrosio Arredondo. Her son, my greatgrandfather, Sisto Arredondo, was born in Cerralvo, N.L. approx. 1848. That would lead me to believe she was possibly from Cerralvo or at least lived there since that is where my gr.grandfather was born.This is the only information I have at this time. I found interesting what you said about the records only going to 1767. Is that the records in Cerralvo or in China?