Following the war, the Alsburys moved to Calaveras Ranch, property her family had long owned along the road to Goliad. The Mexican government refused to recognize the new Republic of Texas. In September 1842, Mexican general Adrian Woll invaded Texas and captured Béxar. He arrested several dozen Texians, including Horace Alsbury, and marched them into Mexico. Juana followed as far as Candela, Coahuila. She waited there for almost two years, until Horace Alsbury was released in 1844. The couple returned to Texas. Horace Alsbury then joined troops fighting the Mexican–American War. He died while in the army in 1846 or 1847. At some point after this, Juana married again, to Juan Pérez, her first husband's cousin.