Hi,
A couple of questions and the quote from the Family Search webpage about missing records.
1. Are the missing online records of Nochistlan are in the process of being digitized? Or are they completely missing?
2. If the missing online records are in a microfilm collection, would any local Family History Center have them?
"If the locality and time period you need are not included in the online records, the next step is to find them in the microfilm collection of the Family History Library. Currently, they are being digitized, and plans are to complete that project by 2020. Check back occasionally to see if your records have become available. In the meantime, some of them might be available at a Family History Center near you."