4. Father Duenas Memorial School
Father Dueñas Memorial School(FDMS) is an all-male Catholic high school located in Mangilao, in the United States territory of Guam.
It is within the territory of the Roman Catholic Archdiocese of Agaña. The school is accredited by the Western Association of Schools and Colleges.
Most Rev. Appolinaris W. Baumgartner, OFM Cap. founded the school in 1948. It was named after Father Jesus Baza Dueñas, a Chamorro priest who was beheaded by Japanese forces during World War II. The school began as a seminary to teach young men to become priests; it became a university preparatory school.
As a college preparatory school, students are required to take four years of English, mathematics, science, social studies, and theology.
Students at Father Dueñas Memorial School compete in numerous academic competitions each year. Academic competitions include the American Mathematics Competition, Academic Challenge Bowl, Mock Trial, and the National Forensic League.