She was born circa 1745. Her father was Francisco Guerra, and her mother was Ana Josefa de la Garza. Her father owned Porción 66, Mier. In 1750, she lived in Camargo. The census recorded that she was the daughter of a settler, and 6 years old. Her household had 7 people, and they did not receive government aid to move to the colony. In 1782, she lived in Mier in household number 34. The church census recorded that she was married, española, and 37 years old. Her household included 9 people. In 1791, she lived in Mier in household number 29. The church census recorded that she was married, española, and 45 years old. Her household included 10 people.
She married Juan Jose de la Garza Falcon, son of Capt. Blas de la Garza Falcon and Maria Catarina Gomez. He owned Porción 81, Camargo.
Joseph Manuel de la Garza Falcon, baptized 12 Apr 1764 in Camargo. His padrino was Dn Joseph Antonio de la Garza Falcon, and his madrina was Da Leonor Mendes.
Blas Maria de la Garza Falcon, born 1770.
Francisco Antonio de la Garza Falcon, born 1773.
Jose Nepomuceno de la Garza Falcon, born 1775.
Juan Jose Manuel de la Garza Falcon, born 1776. He married Maria Ursula Ramirez, daughter of Jose Matias Ramirez Peña and Maria Juliana Gonzalez on 26 May 1800. He owned San Francisco grant, Duval County.
Maria Rita de la Garza Falcon, born 1782. She married Jose Eugenio Ramirez Hinojosa, son of Jose Cristobal Ramirez and Maria Matiana Hinojosa on 28 Jan 1800.