Juan Bautista Chapa was the son of Jose Nicolas Chapa and Maria Inez Baez de Benavides.
He married Maria Clara Guerra?.
He married Maria Rita Lopez de Jaen on 19 Jan 1740 in Cadereyta.Their padrinos were Jose Salinas and Antonia de Chapa.
Maria Josefa Chapa was born circa 1737. She married Jose Antonio Hinojosa, who owned Mier 15.
Maria Gregoria Chapa was born circa 1743.
Jose Francisco Chapa was born circa 1746. He married Maria Faustina (Agustina) Garcia.
Antonia Gertrudis Chapa was born circa 1751. She married Jose Maria Escobar.
Maria Ignacia Chapa was born circa 1754. She married Jose Antonio Ramirez Peña.