Santa Casa da Misericórdia
In 1839, he was elected Solicitor General for the Junta Geral, while exercising for many more years the role of ombudsman for the Santa Casa da Misericórdia. Ferreira Drummond also supported the fight against the extinction of the municipality of São Sebastião, and through his activity was able to delay its implementation from 24 October 1855 until 1 April 1870.