His father was Gabriel de la Garza.
He married Juana Francisca de los Santos Coy, daughter of Lazaro de los Santos Coy and Angela Berlango Lobo.
Joseph Cayetano de la Garza. He married Maria de Jesus Martinez, daughter of Capt. Rodrigo Martinez and Rafaela Treviño. He owned land in Porción 57, Camargo.
Luisa Margarita de la Garza. In 1735, she requested a dispensation to marry Cristobal Benito Garcia, son of Tomas Garcia de Quintanilla and Maria de la Garza Falcon Montemayor.