Educated Colégio Malheiros, 1919-1922, and Ginásio Mineiro, 1923-1925, Belo Horizonte, Minas Gerais. Ginásio Amazonense Pedro II, Manaus, 1926-1928, Faculdade de Direito, Manaus. 1929; law school, University do Brasil, 1930-1932.
Direito, Manaus. 1929. Law school, University do Brasil, 1930-1932. Mayor’s office, 1937-1941. City attorney and secretary general of district attorney’s office, 1941-1946. Official ministry of agriculture, since 1946.
Jósio married to Cecilia Flora Nioac. They have three children: Cecilia, Efigénio, and Eduardo.