His father was Vicente Guerra Cañamar, and his mother was Dominga - .
He married Elena Cavazos, daughter of Antonio Cavazos de la Garza and Bernarda Rodriguez de Montemayor.
In 1710, he requested a dispensation to marry Catarina de la Garza Falcon. It was his second marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.213.
Josepha de Guerra. In 1714, she requested a dispensation to marry Nicolas de la Garza.
Vicente Guerra Cañamar, born 1705. He married Micaela Geronima de la Garza, daughter of Teodoro de la Garza and Maria Gonzalez de Quintanilla.