He was born circa 1781. His father was Juan Manuel Guerra Cañamar, and his mother was Maria Isabel Treviño. In 1782, he lived in Mier in household number 35. The church census recorded that he was a young child, español, and 1 years old. His household included 6 people. In 1791, he lived in Mier in household number 31. The church census recorded that he was a child, español, and 10 years old. His household included 12 people. He owned Palo Blanco grant, Brooks County.
He married Luisa Ramirez, daughter of Jose Matias Ramirez Peña and Maria Juliana Gonzalez in 1803. He was 22 years old. Her father owned Palo Blanco grant, Brooks County.
Palo Blanco grant, Brooks County