The first Justice of Peace was Liborio Fabiala. He was appointed on 1 August 1901. The year American Civil Government started in the province and the whole country. In 1910, during the American colonization period, the town was visited by the American survey ship "Fathomer" which conducted hydrographic surveys and depth sounding in the waters around Simara Island. Its American crew also constructed a lighthouse which is still standing today. At that time, Corcuera was still administered as part of Banton municipality on nearby Banton Island. In January 1931, Corcuera was granted local autonomous government by virtue of Chief Executive Order No. 292, Series of 1930 initiated by then Governor Manuel T. Albero. Corcuera then became the third island municipality in the province. The inauguration of Corcuera as a maiden municipality was held on February 3, 1931.