Nathan Levine (1911–1972) was a 20th-Century American labor lawyer and real estate attorney in Brooklyn, New York, who, as attorney for his uncle, Whittaker Chambers, testified regarding his uncle's "life preserver." This packet included papers (the "Baltimore Documents") handwritten by Alger Hiss and Harry Dexter White, as well as typewritten by the Hiss Family's Woodstock typewriter. It also included microfilm, paraded to the public by U.S. Representative Richard M. Nixon and HUAC investigator Robert E. Stripling, dubbed the "Pumpkin Papers" by the press, which helped lead to the U.S. Department of Justice to indict Hiss for perjury.
Nathan L. Levine was born on January 18, 1911, in Brooklyn, New York. His parents were Barnett Levine and Sophia Levine (older sister of Esther Shemitz, future wife of Whittaker Chambers). He had one brother (Robert) and two sisters (Essie and Mildred).
In 1933, Levine became a lawyer. Through the late 1930s, he was a labor lawyer. By 1940, he was (also) handling real estate cases such as Assignments and Receiverships
In 1948, Levine had law offices at 152 West Forty-Second Street, New York. In 1956, he was part of O'Donnell & Schwartz, with offices at 2 West 45th Street, Borough of Manhattan, City of New York (documented in Levine's affadavit dated October 29, 1956, and addressed to New York attorney general Jacob K. Javits).
Levine continued to work as an attorney until time of death in 1971.
After defecting from the Soviet underground, Whittaker Chambers originally entrusted his "life preserver" to Ludwig Lore. In May-June 1938, however, he retrieves it and gave it instead to Nathan Levine. The "life preserver" was a thick manila envelope, full of papers (typewritten and handwritten) plus microfilm canisters. Instructions for his nephew were that, in the event of Chambers' disappearance or demise, Levine was to give the envelope to his aunt, Esther Shemitz Chambers.