He was born circa 1730.
He married Maria Guadalupe (Teresa) de la Garza (?).
Vivana de Alanis, born 1753. She married Pedro Regalado Garcia, son of Jose Cristobal Garcia and Petra Cantu on 9 Aug 1773 in Mier.
Maria Quiteria de Alanis, born 1754. She married Jose Antonio Garcia, son of Jose Cristobal Garcia and Petra Cantu on 25 Nov 1774 in Mier.
Jose Antonio de Alanis, born 1760. He married Maria Petra Longoria, daughter of Vicente Longoria and Manuela Francisca Garza on 1 Jul 1785 in Mier.
In 1757, he lived in Mier in household number 34. The church census recorded that he was married to Maria Guadalupe (Teresa) de la Garza. His household included 3 people, including one child. He had arms, 6 tame horses with a herd of 15 horses, 3 cattle, and 200 small livestock. He had one son.