 In 1825, the presidio became a Franciscan mission under the direction of San Pedro and San Pablo of Michoacán.By this time, the town has grown sufficiently that there were a number of large mansion homes, the most prominent belonging to Juan Sánchez, Luis Olvera, Lamberto Rodríguez, Aurora Requena and Alicia Sánchez.With the declaration of the first state constitution, Peñamiller belonged to the district of Tolimán, under the name of Santa María Peña Millera.