http://www.raullongoria.net/Genealogy/FamilyTree/b215.html#P930
Raul Longoria states:
Sabas VILLARREAL was born about 1811. The 1860 Census indicated he was 49 years old. Amazingly, the 1880 Census listed his age as 50. I believe the 1860 Census is more likely to be correct. On January 25, 2004, I spoke with Miguel Villarreal who said oral history provided by a relative in La Grulla said that Sabas was a brother of Gregorio and Yrinea. Miguel has a copy of a document which states "en certera" [with certainty] that Sabas, Gregorio, Yrinea, Antonio, Petra and Hilario were siblings.

The deed from Macario Villarreat et al to Ponciano Longoria states that Sabas Villarreal is the deceased father of Macario Villarreal and Jesus Maria Villarreal. A copy of the deed is in the possession of Odilia Longoria. Parents: Ignacio VILLARREAL and Manuela de la GARZA.

Spouse: Isabel RAMIREZ. Sabas VILLARREAL and Isabel RAMIREZ were married. The Seabury Papers show that Sabas Villarreal and Isabel Ramirez had five children: Macario, Aniseto, Jesus Maria, Encarnacion and Calixta Villarreal. Of these five children, Seabury had information only on Calixta, indicating that she married Saturnino R. Fuentes and that they had three children: Pedro, Jose and Julio Miguel (who died as a child).
My mother, Zoila Villarreal Longoria, recalled on Aug. 20, 1999, that the mother of Jose Ruelas was named Calixta Villarreal and that Calixta was the sister of Concepcion Villarreal, who married Juana Longoria. She also recalled that Jose Ruelas' father was named Saturnino Fuentes and that Jose Ruelas had a brother named Pedro, who was murdered in 1930. She did not know how the Ruelas surname came into being.
From this, I have concluded that the Calixta Villarreal and Saturnino R. Fuentes listed in the Seabury Papers are indeed the parents of Jose Ruelas (perhaps Saturnino's middle initial "R" stands for Ruelas) and that the Encarnacion Villarreal listed by Seabury is really Concepcion Villarreal (it was quite common to confuse the name Concepcion with Encarnacion, especially if a person is called by a nickname such as "Tio Chono").

The 1880 Census listed all the family members shown here, except for Sabina Canuta who died as an infant, or small child. Also living in the household at that time were Juliana (Tamanz?), 38 years old, and her two daughters, Teofila (age 12) and Felicita (age 6). Juliana was a housekeeper for the family. The Census also shows that Felicita had small pox at that time. Children were: Macario VILLARREAL, Aniseto VILLARREAL, Sabina Canuta VILLARREAL, Jesus Maria VILLARREAL, Calixta VILLARREAL, Abraham VILLARREAL, Concepcion VILLARREAL.

The league purchased by Juan Longoria, who was to become a compadre of Gregorio Villarreal three years later, was adjacent to the Perez league. The league purchased by Juan Longoria encompasses lands known today as “Santirenea” or “Santa Yrinea”, after a ranch named after Juan Longoria's wife Yrinea Villarreal. Sometime later, Gregorio apparently sold the fourth league of land from the La Encantada grant to his brother Sabas Villarreal, the husband of Isabel Ramirez, the first cousin of Gregorio’s wife Maria Ysidora Ramirez, giving rise to a ranch named "Santa Isabel".