Angel B. Taglucop, then Moderator of the Eastern Mindanao Conference, to establish a school in Cabadbaran.
Mindanao Institute was established in June 1946 as a non-stock, non-profit Church-related High-School which was recognized by the government under Recognition No.
The residence of Judge and Mrs. Jose R. Villanueva provided the first classrooms, then moved to a larger place in the old Sandigan Building at Magsaysay street, and later transferred to Nipa (Bamboo Structured) Building near the present school which was partly donated and party sold to the United Church of Christ by Mssrs.
In 1953, the school suffered a serious crisis, which was solved through placing its administration under the Mindanao Eastern Conference, Composed of the churches in Surigao and Agusan provinces.
Taglucop, Dr. Sanders, and Bishop Rodriguez and Lay Representative Virgilio N. Atega Sr., the Executive Committee of the General Assembly of the United Church of Christ in the Philippines granted the school subsidies for the purchase of the lot of Mr. Udarbe, hiring a Bible Teacher, salaries and laboratory supplies and equipment.