You find a list of famous Bronxites on the New York Public Library website, here (it includes people born or who lived in the Bronx). One of my favorite authors is on the list:
Wouk, Herman: grew up in Hunts Point in the 1930s and 40s. His service in the Navy in World War II provided some basis for his great novel, "The Caine Mutiny," and for the later "Winds of War" and "War and Remembrance." His experiences in The Bronx, however, provided memorable scenes in two other novels, "City Boy," and "Inside Outside." With a great productive output, Herman Wouk is considered a major American novelist today.Now, Bronxite Sonia Sotomayor has been nominated for the Supreme Court of the United States--another good sign from the Obama administration.
The NY Daily News has more on the Bronx angle, here.