Seu Maçu was the one who had the idea of merging all of the Carnaval groups of the Mangueira hill and, on the occasion of the creation of the Mangueira samba school on April 1929, he was one of its founders. Being a full-fledged mestre-sala, the very first one of that samba school, Maçu was also of inestimable support as a protector or guardian of the samba school in times when disputes with rivals or the samba persecution by the police were solved by his smart conversation instead of bodily fights, razors, or even revolvers. Repugnant as it may seem today, in that sociohistoric setting that was part of the organization of life and necessary at that, having changed only over time.
In the times of the heavy samba, of the valentes (fearless fighters), and of the batuques (meaning both the music and the fight derived from the capoeira), Maçu was already a respected batuqueiro, showing his abilities in both the pagodes of the commemorations of Penha and in the batucadas brabas of the Praça Onze, where his pernadas (leg blows) used to drive many a strong participant to the ground. Every time Mangueira had its existence threatened, Maçu was called into action and as a result of this, he was the president of the school several times. But he also evidenced enough administrative talent to build the Mangueira headquarters in 1972, the Palácio do Samba, or the Palace of the Samba.