The Pumpkin Papers are a set of typewritten and handwritten documents, stolen from the US federal government (thus information leaks) by members of the Ware Group and other Soviet spy networks in Washington, DC, during 1937-1938, withheld by courier Whittaker Chambers from delivery to the Soviets as protection when he defected. They featured frequently in criminal proceedings against Alger Hiss from August 1948 to January 1950. The term quickly became shorthand for the complete set of handwritten, typewritten, and camera film documents in newspapers.[1][2][3]