Under the pseudonyms Kalungano and Lilinho Micaia, he published poems in O Brado Africano, and his work appeared in two anthologies produced by the Casa dos Estudantes do Imperio in Lisbon. Under his real name, he had a book published by the Associacao dos Escritores Mocambicanos (Mozambican Writers' Association) in 1987, entitled Canto do Amor Natural.
Marcelino dos Santos is the son of Firmindo dos Santos and Teresa Sabino dos Santos. He was raised in Lourenço Marques (now Maputo). His father was politically active: a member of the African Association of Mozambique. Marcelino left Mozambique in 1947 to continue his education at the Industrial Institute in Lisbon - the Instituto Industrial de Lisboa. At the Casa dos Estudantes do Imperio (House for Students of the Empire) he rubbed shoulders with others destined to become leaders of the independence movement in th Portuguese colonies -- such as Amilcar Cabral (Guinea Bissau), Agostinho Neto (Angola), and Eduardo Mondlane (Mozambique). By 1950, with Neto arrested and Mondlane departed for the United States, dos Santos had relocated along with several others to Paris. There he lived with writers and artists associated with the literary magazine Presence Africaine. Under the pen-name Lilinho Micaia, a collection of his poetry was published in the Soviet Union.
He was instrumental in the formation of the Anti-Colonial Movement (MAC) in Paris in 1957. He joined the Paris branch of the Uniao Democratica Nacional de Mocambique (UDENAMO), one of the nationalist groups that would later merge to form FRELIMO. He was involved in the founding of the Conference of Nationalist Organizations of the Portuguese Colonies (CONCP) at Casablanca in April 1961, elected permanent secretary in charge of coordinating nationalist activity. He was skilled at communicating the aims of the CONCP to an international audience. After the founding of FRELIMO in 1962, in which dos Santos was also involved, he increasingly devoted his energies to that organisation. By 1964 he was FRELIMO's secretary for external affairs, invaluable to the party for his communication skills which he employed, for example, in his addresses before the Organization for African Unity, the Afro-Asian Solidarity Conference, and the United Nations. After Mondlane's assassination, dos Santos was elected to the three-person Presidency council, with Uria Simango and Samora Machel, which guided the party through the subsequent difficult period. In 1970, when Machel assumed the sole presidency, dos Santos became vice-president.
Mozambique News Agency interview (accessed December 2007).