 In Puerto Rico Ferré met and married María Aguayo Casals, a cousin of Catalan cellist Pablo Casals, whose mother was a Puerto Rico-born Catalan musician.Antonio and María had four sons, Luis, José, Carlos and Hermán Ferré, and two daughters, Rosario and Isolina, this latter would become a nun of international prominence.Ferré studied mechanical engineering at the Massachusetts Institute of Technology, obtaining his bachelor's degree in 1924 and master's degree in 1925, and music at the New England Conservatory of Music.