Career
He obtained his law degree from the University of Havana. He later left the party and joined the Partido Revolucionario Cubano (Auténtico). Supervielle was the Cuban Treasury Minister during the government of Ramón Grau San Martín (1944–1946).
He later became the Mayor of Havana in September 1946.
He had promised to build a new aqueduct for the city, but was unable to fulfill his promise. So on May 5, 1947, he shot himself in the chest with a revolver and died.
The United States. Embassy in Havana reported: "Great weight public opinion, as openly expressed, blames Grau and administration for death, holding that honest honorable official was hampered in fulfillment waterworks campaign promises by venality of politicians and preferred death to dishonor." He was succeeded by the President of the Havana City Council, Nicolás Castellanos. Thereafter, he immigrated to the United States, earned his Doctor of Philosophy at Florida State University and taught.