Exclusive: The Catcher in the Rye author’s son tells the Guardian estate will publish ‘all of what he wrote’ over next decade

• Matt Salinger: ‘My father was writing for 50 years without publishing. That’s a lot of material’

JD Salinger’s son has confirmed for the first time that the late author of The Catcher in the Rye wrote a significant amount of work that has never been seen, and that he and his father’s widow are “going as fast as we freaking can” to get it ready for publication.

Salinger died in 2010, leaving behind a small but perfectly formed body of published work that has not been added to since 1965’s New Yorker story, Hapworth 16, 1924. Rumours have circulated for years that the creator of one of the 20th century’s most enduring characters, Holden Caulfield, continued to write over the ensuing decades he spent in the New Hampshire village of Cornish, far from public view.