Nelle Harper Lee, who won the Pulitzer Prize for fiction in 1961 for her book, “To Kill a Mockingbird,” has died at the age of 89, multiple sources in her hometown of Monroeville, including the mayor’s office, confirmed Friday morning. Lee was born April 28, 1926, in Monroeville, the youngest of four children of lawyer Amasa Coleman Lee and Frances Cunningham Finch Lee. She moved to New York in 1949, where she worked as an airlines reservations clerk while pursuing a writing career. Eight years later, Lee submitted her manuscript for “To Kill a Mockingbird” to J.B. Lippincott & Co., which asked her to rewrite it.