Dear Matt, I am glad to see that you are doing some detailed research! I do have the information about Antonia and Tiburcio marrying into the Hinojosa family. However, if memory serves me correctly (I don't have the records at hand right now), Tiburcio married Angelita on February 15, 1896 at the Corpus Christi (St. Patrick's) Cathedral (I'll double check). The reason I know their (Antonia's and Tiburcio's) birthdates is because I found the transcriptions of their baptismal records in a microfilm of the church records from Our Lady of Refuge Catholic Church in Refugio, Texas. This microfilm can be located and ordered at any family history library that is operated by LDS (Mormons or Church of Jesus Christ of Latter Day Saints). Also, the Corpus Christi Public Library geneology section has a copy of this microfilm.
Here's the information that I have readily available from my database (I haven't input the marriage dates yet)...
(Jose) Tiburcio Deanda: BIRTH: 11 Nov 1876, Puentes Ranch,San Patrcio County,Texas BAPTISM: 5 Sep 1877, Our Lady of Refuge,Refugio,Refugio Co,TX [Padrinos: Jose Rodriguez and Gabriela Chavez] CONFIRMATION: 13 Nov 1877, Puentes Ranch,San Patrcio County,Texas [Padrino: Guadalupe Hernandez]
Antonia Deanda: BIRTH: 8 Sep 1872, Refugio County,TX BAPTISM: 19 Feb 1875, Our Lady of Refuge,Refugio,Refugio County,TX Padrinos: Jose Rodriguez and Gabriela Chavez There is a side comment written by the priest that says "on the Aransas" Possibly this priest was travelling out to the Ranchos and baptized the children on the ranch. Later the baptisms were recorded at the main church in the area.
There are records at the Center for American History at UT Austin in the Barker Texas History Collection that may be useful to you. This is where I found records indicating my great great grandfather Gabriel Deanda's salary ($50 a month) as a foreman for them in the 1880s. Tiburcio (Gabriel's father and my great great great grandfather) was a fence rider and earned $13 a month. If your ancestor Jorge/George Hinojosa was much older than his sister Angelita, he may appear in these records also.