Benjamin Victor Cohen, the son of Polish immigrants, was born in Muncie, Indiana, on 23rd September, 1894. He was educated at the University of Chicago and the Harvard Law School. Professor Felix Frankfurter arranged for his student to become legal secretary for Federal Circuit Court Judge Julian Mack.
Cohen served as counsel for the American Zionist Movement and attended the 1919 Paris Peace Conference and helped to negotiate the League of Nations mandate for Palestine. A young student, Ella Winter, also worked with Frankfurter: "Ben Cohen, a tall, slender, trembling young American whose clothes hung insecurely on a diffident frame. His fingers were long and skinny, and his hands didn't know what to do. He had a long nose, straight brown hair brushed slantwise from a broad white forehead above rimless glasses, and a shaking frightened voice."
Cohen worked for Louis Brandeis as a law clerk before practicing law in New York City. In 1933 Felix Frankfurter, who was providing legal advice to President Franklin D. Roosevelt, suggested that three of his former students, Cohen, Thomas Corcoran and James M. Landis, could help draft legislation. William E. Leuchtenburg, the author of Franklin D. Roosevelt and the New Deal (1963), has pointed out: "Roosevelt had discovered Corcoran and Cohen, who had teamed up to draft Wall Street regulatory legislation, to be remarkably resourceful in resolving knotty governmental problems, and by the spring of 1935 "the boys," as Frankfurter called them, were playing key roles in the New Deal."
Cohen and Corcoran helped draft the Federal Securities Act (1933), the Tennessee Valley Authority (1933), Securities Exchange Act (1934), the Federal Housing Administration (1934), Securities Exchange Commission (1935), the Public Utilities Holding Company Act (1935), Rural Electrification Administration Act (1935) and the Fair Employment Act (1938)
Cohen and Corcoran lived with Cohen and five other New Dealers in a house on R Street in Georgetown and were known as "the scarlet-fever boys from the little red house in Georgetown." Cohen and Corcoran were known as the "Gold Dust Twins" and appeared on the cover of Time Magazine on 12th September, 1938. One friend described Cohen as "like a Dickens portrait of an absent-minded professor."
In 1940 Cohen helped write the Lend-Lease plan. The following year he became counsel for John Gilbert Winant, American Ambassador to London. He also served as general counsel for the Office of Economic Stabilization. Cohen also assisted in the drafting of the 1944 Dumbarton Oaks agreements leading to the establishment of the United Nations.
In 1945 Cohen served as the United States' chief draftsman at the Potsdam Conference. Charles L. Mee, the author of Meeting at Potsdam (1975): "Cohen was known for his slouching posture, sloppy dress, absentminded table manners - and for a skill at drafting legislation that was generally reckoned the best in the United States." Cohen also drafted a 1957 Civil Rights Act and was special assistant to President John F. Kennedy on disarmament issues.
Benjamin Victor Cohen died from complications due to pneumonia in Washington, D.C. on 15th August, 1983.