Welcome to G2G forum, Betsy.
Based on the records below, Carolina Garza was born ab. 1912 in San Benito, (Cameron Co.), TX.
She married Adolph (or Adolfo) Hidalgo ab. 1930.
The couple had (at least) 3 children, all of them were born in Big Lake, Reagan Co., TX.: 1.- Adolph (most probably their firstborn, named after his father), 2.- Abel and 3.- Armando.
Name: Adolph Hidalgo
Sex: Male
Father's Name: Adolph Hidalgo
Mother's Name: Carohnene Garza
Event Type: Birth
Event Date: 13 Jul 1931
Event Place: Big Lake, Reagan, Texas, United States
Reference ID: 60277
GS Film Number: 2281503
Digital Folder Number: 005035135
Image Number: 00113
Citing this Record
"Texas Birth Certificates, 1903-1935," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KHJS-VF6 : 1 March 2021), Adolph Hidalgo, 13 Jul 1931; citing Big Lake, Reagan, Texas, United States, certificate 60277, Texas Department of Health, Austin; FHL microfilm 2,281,503.
Name: Abel Hidalgo
Sex: Male
Father's Name: Adolph Hidalgo (Adolph Hidalgo)
Mother's Name: Caroline Garza (Caroline Garza)
Event Type: Birth
Event Date: 25 Apr 1933
Event Place: Big Lake, Reagan, Texas, United States
Reference ID: 32538
GS Film Number: 002283077
Digital Folder Number: 005035247
Image Number: 01296
Citing this Record
"Texas Birth Certificates, 1903-1935," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K6G5-TR7 : 1 March 2021), Abel Hidalgo, 25 Apr 1933; citing Big Lake, Reagan, Texas, United States, certificate 32538, Texas Department of Health, Austin; FHL microfilm 2,283,077.
Name: Armando Hidalgo
Sex: Male
Father's Name: Adolfo Hidalgo
Mother's Name: Carolina Garza
Event Type: Birth
Event Date: 24 Dec 1935
Event Place: Big Lake, Reagan, Texas, United States
Record Number: 811
Reference ID: 105413
GS Film Number: 2368148
Digital Folder Number: 004786586
Image Number: 00811
Indexing Project (Batch) Number: C06249-5
Citing this Record
"Texas Birth Certificates, 1903-1935," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VXPM-WQR : 1 March 2021), Armando Hidalgo, 24 Dec 1935; citing Big Lake, Reagan, Texas, United States, certificate 105413, Texas Department of Health, Austin; FHL microfilm 2,368,148.
See the couple listed in lines 40 and 41 in the following 1930 Census sheet (Eden Village, Concho Co., TX), link below:
https://www.familysearch.org/ark:/61903/3:1:33S7-9RCK-SWX
They may well be Adolph and Carolina just married in the house of Carolina's father in law.
I hope you may find helpful for your search the information above.