Question about Researching in a Parish

Message from mexicanfhr walkerjona@...

Hello all,

Have any of you ever done research in the actual Parish in Mexico?

I am asking, because in about 3 weeks, I will be going to Mexico. And
if possible I will try find some information at the parish and
cemetary level.

So could anyone give me some pointers, on what to expect? Or the best
way to approach the subject?

Thanks,
Jonathan