Maria Polonia de OLIVAS and Maria Petra de OLIVAS were sisters, daughters of Thomas Antonio Olivas and Maria Josefa Peres y Banos.

San Fernando Baptisms, 1761 - 1793, translated by John Ogden Leal.,
Page 36., SFB # 547. Baptized: Jan. 2, 1774.
ABILA, Maria Petra de, Spanish, 8 days old,
legitimate child of Antonio de ABILA & Maria Josefa PERES y BANES.
Godparents: Bartolo SEGUIN & Magdalena Martines.
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Maria Petra de OLIVAS m. Juan Antonio ESPARZA

San Fernando Marriages: 1798 - 1856, translated by John Ogden Leal., Page 2., SFM # 15, July 20, 1799.
ESPARZA, Juan Antonio, mestizo, originally from San Juan del Mesquital, and raised since a child at Saltillo, and has been in this city for 2 years,
legitimate son of Juan Antonio ESPARZA and Polonia PERES, from Saltillo;
to Maria Petra OLIVAS, Spanish, of this city,
legitimate daughter of the late Antonio OLIVAS and Josefa PERES.
Godparents: Jose Antonio de la GARZA & Concepcion FARIAS.
Witnesses: Ygnacio de los SANTOS & Jose Ramon LEAL, all of this city.

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San Fernando Baptisms, 1761 - 1793, translated by John Ogden Leal.,
Page 74., SFB # 1137. Baptized: Feb. 15, 1783.
OLIVA, Maria Polonia, Spanish, 9 days old,
legitimate child of Tomas OLIVA & Josefa VASQUES. Godparents: Xabier Laso & Matiana de los Santos.
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Maria Polonia de OLIVAS m. Francisco Xavier HERNANDEZ

San Fernando Marriages: 1798 - 1856, translated by John Ogden Leal., Page 9., SFM # 66. Dec. 28, 1803. HERNANDES, Francisco, Spanish, of this city,
legitimate son of the late Calletano [Cayetano] HERNANDES & Maria Ygnacia ORANDAY;
to Polonia de OLIVAS; Spanish, of this city,
legitimate daughter of the late Antonio de OLIVAS and Josefa VANOS.
Godparents: Miguel Flores & Antonia Abila.
Witnesses: Ygnacio Briones & Jose Ramon Leal, all of this city.
Father Bernardino Vallejo performed the marriage.