He was born circa 1743. His father was Bartolome de Cuellar, and his mother was Gregoria Martinez. In 1750, he lived in Revilla in household number 12. The census recorded that he was 7 years old, the child of the householder. His household included 2 people.
He married Maria Tomasa Gutierrez de Lara, daughter of Bernabe Gutierrez de Lara and Antonia de la Garza Falcon. Her father owned land in Porción 14, Revilla, Zapata County.
He married Gertrudis Ramirez, daughter of Jose Cristobal Ramirez and Maria Matiana Hinojosa. It was his second marriage. Her father owned land in Porción 17, Revilla, Zapata County.
Maria del Refugio Cuellar. She married Jose Eugenio Ramirez Hinojosa, son of Jose Cristobal Ramirez and Maria Matiana Hinojosa. He owned land in Porción 16, Revilla, Zapata County, Porción 14, Revilla, Zapata County, Porción 15, Revilla, Zapata County, Texas, Porción 17, Revilla, Zapata County.