His father was Tomas Garcia de Quintanilla, and his mother was Maria de la Garza Falcon Montemayor.
He requested a dispensation to marry Maria Josefa Botello de Morales. They were married on 1 Apr 1707 in Monterrey. the bride was 14 years old. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.199.
In 1735, he requested a dispensation to marry Luisa Margarita de la Garza. It was his second marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.101.
Pedro Garcia. He married Maria Teresa de Guzman, daughter of Diego de Guzman and Josefa de los Santos.
Ana Maria Garcia Buentello. She married Bartolome Treviño, son of Joseph de Treviño and Maria Josefa Leal de Leon in Monterrey?.