Hello Marge,

We are primas my descened comes from Juana Maria Chavez married to 
Luis Silva in 1738 she was the daugther of Francisco Chavez-Clara de 
Los Reyes.
I don't have a copy for Pedro Chavez Banuelos and Agueda Olague 
marriage but I can tell you where I found that information.
Go to Heraldica y Genealogia Cabral Valdes he has a big web site  on 
many names from Jerez and Monte Escovedo beware that there are some 
errors. When you get to the site enter
1 click on appellidos
2 click on the letter B
3 click on Banuelos
4 click on Indice de Nombres
5 scroll down to Pedro Chavez y Banuelos
6 click on Notas

You will find the information for Pedro and Agueda's marriage.
It states that there was a despenesa for this marriage in the 3rd 
with 4th grado. I have the Sagrada Mitra book and it is not in there.
I did write  to Mr. Cabral several months ago to see how I could 
obtain a copy but he never got back to me.

Regards  
Sally