FROM SITIO TO BARRIO
In 1886, Papaya was changed into ‘Muñoz’ to honor Don Francisco Muñoz, the province’s alcalde mayor, and the community’s first appointed gobernadorcillo. Muñoz was annexed as a barrio of San Juan de Guimba municipality. Settlers trickled in from Bulacan and the Ilocos Region. In 1911, Factoria (now San Isidro town), the provincial capital, was totally flooded. Muñoz was then considered a possible new capital of the province.