Eduardo Neumann Gandía (26 April 1852 – 9 September 1913), was one of Puerto Rico's most accomplished historians. He is particularly well known for his nineteenth century book Verdadera y Auténtica Historia de la Ciudad de Ponce: desde sus primitivos tiempos hasta la época contemporánea. His father was Guillermo Neumann, who was mayor of Ponce from 23 April 1851 to 30 September 1851. Eduardo Neumann Gandía's most important work was Benefactores y Hombres Notables de Puerto Rico. (Vol. I, 1896; Vol. II, 1899). Neumann wrote profusely during a period of 30 years, producing some 20 major works plus numerous articles in newspapers and periodicals.