Another Newbie

Being new to this group, I am somewhat hesistant to post anything and, thereby, annoy the membership! However, it doesn't make any sense to join and then sit back and wait...Anyway, I can find no more info on my great-grandparents and thought someone here might have some suggestions on how to find something when the information is so sparse. So, here goes...

Here is what I know:

My Grandmother was Guadalupe Otila Macias, born in Durango, Mexico on April 12, 1912, died October 29, 1980 in San Antonio, TX. She was the daughter of Margarita Garcia Alvarado and Pablo Macias Baldez. (Baldez could have been Valdez, but my mom seemed to think it was Baldez)

Guadalupe’s parents were from Central Mexico around Zacatecas and Guanajuato. They were:

Pablo Macias Baldez, son of Francisco Macias and Isabella Baldez. Isabella’s father was Ponuceno Baldez.

Pablo Macias was born June 20, 1872 in (to the best of my knowledge) Aguascalientes, Mex.
Died August 1961 – buried in El Carmen Church Cemetery in Cassin, TX. His home was in Cassin, TX.

Margarita Macias was born October 18, 1895 in beautiful San Miguel de Allende, Mexico Died May 1957.
She was the daughter of Victoria Alvarado and Pilar Garcia. Margarita supposedly had a twin sister named Josephina. And brothers named Alejandro, Jose, and Sylvestre.

Pablo and Margarita had 13 children
1. 1st born died at age 3. Frank?
2. Berula aka Belda
3. Guadalupe born in Durango, Mex
4. Isabel born in Rockdale,TX. 4/13/13. Margarita was pregnant with her when she moved
from Mex to Tex. Isabel was nicknamed Chabella
5. Frank
6. Juanita born in Cassin, TX March 14, 1918 (my mom, Aunt Janie) there was no birth
certificate issued for her as she was born at home. So one was issued years later and
they put the wrong year of 1917.
7. Jesse
8. Pablo (he was also Jesse or Jesus on record, but was called Pablo and Paul).
9. Jose(Joe)
10. Maria (
11. Margarita (Maggie)
12. Pedro born 10/20/31 (Pete)
13. Pilar (pilo)

Also, Pablo had a brother named Nieves Macias who lived in Bryan, TX, and two sisters named Antonia (Tonia) and Manuela Macias. Manuela also lived in Bryan, Tx.

If any of this means anything to anyone, please respond. If you have any suggestions, that would be great. Thank you in advance!

LT