He was born circa 1840. His father was Cesario Guerra, and his mother was Ramona Guerra. His father owned Las Viboras grant.
He married Josefa Barrera, daughter of Francisco Barrera and Maria Yrinea Barrera in 1862 in Mier. He was 22 years old, and the bride was 18 years old.
Severina Guerra Barrera, baptized 18 Apr 1868 in Mier. She married Jacobo Gonzalez Rodriguez, son of Pablo Gonzalez and Gertrudis Rodriguez on 26 Feb 1888 in Mier.