Diffun in 1951 was a part and parcel of the province of Nueva Vizcaya. This was during the administration of Hon. Silverio L. Pascua I, it first appointed Municipal Mayor. Aurora was then a juridical entity of the Municipality of Diffun. In the preceding year, when Hon Pascua was elected Mayor, Aurora was Segregated and Classified as a regular barrio.
After its segregation, it was deemed to be classified as an alienable and disposable land suited for pasturing and growing crops owned by the Gomez- Bayaua clans. Encumbrances did not materialize so that Aurora was divided into two regular barrios. The western part was names Aurora West in honor of the late President Don Manuel Luis Quezon. The national road was designated as the boundary between the two areas. Development in the community pushed through, thereby permitting a tremendous increase in population. Its development was brought about by the establishment of the Mountain Sawmill and the Banana Sawmill, and also by its tract of agricultural lands.
By virtue of Republic Act No. 630, sponsored by the then Congressman Leonardo B. Perez, Quirino Sub-Province was weaned from its mother province Nueva Vizcaya. This paved the way for a plethora of positive developments in the newborn province. A great number of people engaged themselves in farming, longing and livestock rising, while a growing number became government employees. Eventually, many became religious and military leaders.
The first Barrio Lieutenant was Eleuterio Estrada while the first Barrio Captain was Manuel B. Garnace Sr. who was then followed consecutively. By Rodrigo B. Claro, Gonzalo A. Ancheta, Ireneo C. Cabuena, Narsisa M. Manzano Sevillano T. Ancheta Ernesto L. Vitug, and Nenilda M. Pascua. Presently, the Barangay Captain at the entire helm is Alfrefo V. Mauyao.
This principal challenges and worked out solutions of barangay aurora west are in need of great, bountiful rewards because the different classes of the people in the community from a core of a well-structured society thru socio economic and infrastructure development, enhancement of agriculture technologies, peace and order, health and nutrition, environment sanitation, and livelihood program including educational up liftmen of the youth.