Surnames; Perez, Torres, Ayala in Oocotlan, Jalisco

Hello everyone:

My name is Sandra Perez Diaz and I am new to the group. My interest is in search for my father's family in Ocotlan Jalisco
area.

I haven't had too much luck as of yet in finding information. What I have found is only Baptism records on Familysearch.com

Information found on my father is from Mexico D.F.; Jose Umberto Perez Torres baptized 08Dec 1930, listing his parents names.
His father; Jose Trinidad Perez / His Mother: Gudelia Torres. There is a file number and digital folder number.
Can anyone tell me how would you use those numbers and could they shed any additional information?

I have no information on my grandmother Gudelia Torres other than her name. My father was raised by his father and
his grandparents, he was the only child and I have no other information on her. There was no marriage,
and I've looked at the Mexico Census listing and have found nothing on her.

I found my grandfather's baptism info from Ocotlan; Jose Trinidad Perez was baptised 12 June 1900.
Listing his parents Julian Perez and mother Daria Ayala. I have not found any other information on him.
There is film number and digital folder number listed. Again i ask, what can I do with that information and
would it be useful in any way?

I have been unsuccessful after several hours glued to the computer in finding any information on my great grandparents.
I've search for baptism records and marriage records.

As far a for my great grandfather Julian Perez I know that he was from Ocotlan and or maybe Tototlan. Born either
1874 or 1875. His mother's last name may have been Lomeli, don't know her first name.

My great grandmother Daria Ayala was from Ocotlan. Born either in 1878 or 1879. Her mother's last name would have
Martinez.

Even though I'm getting a little frustrated with the "brick wall" I seem to be facing, I will, of course continue
with my search. Any suggestions are welcomed (please), thank you.

Sandra

My genealogy;
http://www.nuestrosranchos.com/en/node/19508