In 1903, the Americans established schools in Cabiao and used the English language as a medium of instructions. Pedro Oreta was elected as the first chief executive of the town under American civil regime followed by the then Mun. President Jose Crespo who established and organized the Presidencia (township hierarchy and organizational plan) constituting the different executive department of the municipality. American occupation in Cabiao has not been as cruel as their Spanish predecessor, however, the people of Cabiao were already afraid to trust the new colonizer. Thomasites missionaries arrived in Cabiao in 1902 as a part of educating the people of Cabiao and in 1903, the Americans established schools in Cabiao and used the English language as the medium of instruction. From 1907-09, Cabiao was placed under jurisdiction of San Isidro and the executive power was then held by the Municipal President of San Isidro. It was in the term of Office of Municipal President Gonzalo Del Leon that the seat of Municipal Town Hall was erected on the land donated by the Romero family. It was during the term of Jose Lapuz that Judge Bonifacio Ysip was elected as delegate to the constitutional convention held in Manila.