She was born circa 1750. Her father was Gaspar Garcia, and her mother was Maria Gertrudis de la Barrera. Her father owned Porción 1, Mier. In 1782, she lived in Mier in household number 8. The church census recorded that she was married, , and 32 years old. Her household included 10 people, 2 of whom were likely servants. In 1791, she lived in Mier in household number 5. The church census recorded that she was married, española, and 41 years old. Her household included 10 people, 2 of whom were likely servants. She died on 30 Jun 1817. She was 67 years old.
She married Juan Antonio Canales, son of Jose Salvador Canales and Maria Gonzalez Hidalgo on 18 Sep 1771 in Mier. She was 21 years old, and the groom was 40 years old. He owned Porción 40, Mier. Her husband died on 22 Apr 1792. He was 61 years old.
Jose Antonio Tiburcio Francisco Canales, born 1773. He married Maria Segunda Guerra Cañamar, daughter of Juan Manuel Guerra Cañamar and Maria Isabel Treviño in 1802.
Jose Estevan Canales, born 1775. He married Leonor Gonzalez, daughter of Juan Antonio Gonzalez and Anastacia Hinojosa on 1 Feb 1796.
Maria Josefa Canales, baptized 4 Sep 1776.
Maria Leonor Canales, baptized 28 Feb 1778. She married Jose Alejandro Vidaurri, son of Fernando Vidaurri and Alejandra Sanchez on 10 Aug 1795.
Maria Dorothea Canales, baptized 9 Feb 1782. She married Jose Ignacio Peña, son of Jose Antonio Peña and Maria Petra Garcia on 18 Jan 1804 in Mier.
Maria Encarnacion Canales, baptized 7 Apr 1785.
Santiago Canales, born 1787.