Baptism records

I am in the process of researching baptism records on Ancestry from the Asuncion de Maria Catholic church in Aguascalientes.

Several signatures keep reoccurring on multiple records and I am wondering if these individuals are the priests conducting the baptism or possibly local government officials or witnesses. Names are repeated in the text, on the left margin and at the bottom of each record.

Specifically, what appears to be the name "Francisco Narvaes" on the attached record would be the surname of my mother's ancestors. Is this the signature of the attending priest or is it the the name of some other official? Thanks in advance for any help you can provide.