WoW ! ! !
If you have the information about your great great father you must have a lot of info about them!!!

Are you using any software to get all this information?
I'm using GenoPro (the shareware version) and it's nice to get all this information in order.
If any of you want to try it you can download it here:
http://www.genopro.com/

About the names, I've found that the most populars were:
- Jose
- Jesus
- Francisco

I don't remember about anyone whit the names that you mention, but Juchipila is quite close to Nochistlan.

My great great father was Magdaleno Ruvalcaba. But I don't have any information about his brothers/sisters.