The descendants of the Corsican settlers also became influential in the fields of education, literature, journalism and politics. Historian Colonel Héctor A. Negroni, (USAF-Retired), researched the Corsican-Puerto Rican connection and has documented substantial information about Puerto Rico's ties with Corsica. Today the town of Yauco is known as both the "Corsican Town" and "The Coffee Town". A memorial was installed in Yauco with the inscription, "To the memory of our citizens of Corsican origin, France, who in the 19th Century became rooted in our village, who have enriched our culture with their traditions and helped our progress with their dedicated work – the municipality of Yauco pays them homage." Corsican surnames such as Paoli, Negroni and Fraticelli are common in the island.