"Zooey" is the longest piece of fiction The New Yorker has ever published (as of 2001, at least). (Source)
Zooey Deschanel, that actress you might know, was named after Salinger's Zooey. (Source)
Salinger was engaged in an ugly legal battle with his ex-lover and daughter, who published memoirs that were less-than-kind to him. (Source: Paul Alexander, Salinger: A Biography)
Salinger used to date Oona O'Neil, the daughter of famous playwright Eugene O'Neil. (Source: Jane Scovell, Oona Living in the Shadows: A Biography of Oona O'Neill Chaplin).