Hiss angrily denied the charges and declared that he did not even know Whittaker Chambers. He later admitted that he knew Chambers, but at the time he had been using a different name–George Crosley. In the weeks that followed Chambers’ appearance before HUAC, the two men exchanged charges and countercharges and their respective stories became more and more muddled. Finally, after Chambers publicly declared that Hiss had been a communist “and may be one now,” Hiss filed a slander suit. During the course of that trial, Chambers produced microfilmed copies of classified State Department documents from the 1930s, which he had hidden in hollowed-out pumpkins on his farm. The “Pumpkin Papers” were used as evidence to support his claim that Hiss had passed the papers to him for delivery to the Soviets. Based on this evidence, Hiss was indicted for perjury for lying to HUAC and a federal grand jury about his membership in the Communist Party. The statute of limitations had run out for other charges related to his supposed activities in the 1930s. After the first trial ended with a hung jury, Hiss was convicted in January 1950 and served 44 months in jail. Hiss always maintained his complete innocence. For his part, Chambers remained equally adamant in his accusations about Hiss.