Prior to gaining separate representation, areas now under the jurisdiction of Davao Oriental were represented under the Department of Mindanao and Sulu (1917–1935) and the historical Davao Province (1935–1967).
Under the new Constitution which was proclaimed on February 11, 1987, the province was reapportioned into two congressional districts;[2] each elected its member to the restored House of Representatives starting that same year.
^Won the special election held on November 14, 1967 to fill the new province's congressional seat; took oath of office on January 22, 1968 and served for the remainder of the 6th Congress.[4]
^ abcdeCongressional Library Bureau. "Roster of Philippine Legislators". Republic of the Philippines, House of Representatives. Retrieved February 17, 2017.