Gabriel Léon M'ba (UMM-bah) (9 February 1902 – 27 November 1967) was the first Prime Minister (1959–1961) and President (1961–1967) of Gabon. A member of the Fang ethnic group, M'ba was born into a relatively privileged village family. After studying at a seminary, he held a number of small jobs before entering the colonial administration as a customs agent. His political activism in favor of black people worried the French administration, and as a punishment for his activities, he was issued a prison sentence after committing a minor crime that normally would have resulted in a small fine. In 1924, the administration gave M'ba a second chance and selected him to head the canton in Estuaire Province. After being accused of complicity in the murder of a woman near Libreville, he was sentenced in 1931 to three years in prison and 10 years in exile. While in exile in Oubangui-Chari, he published works documenting the tribal customary law of the Fang people. He was employed by local administrators, and received praise from his superiors for his work. He remained a persona non grata to Gabon until the French colonial administration finally allowed M'ba to return his native country in 1946.