As Secretary of Labor she played a key role writing New Deal legislation, including minumum-wage laws. However, her most important contribution came in 1934 as chairwoman of the President's Committee on Economic Security. In this position she was involved in all aspects of the reports and hearings that ultimately resulted in the Social Security Act of 1935.
Prior to going to Washington, Perkins held positions in state government in New York, first as an aid to governor Al Smith and then to Franklin Roosevelt when he became governor. Smith, a machine politian from the old school, was an early social reformer with whom Frances Perkins made many a common-cause. At Smith's funeral in 1944 two of his former Tammany Hall political cronies were overheard to speculate on why Smith had become a social crusader. One of them summed the matter up this way: "I'll tell you. Al Smith read a book. That book was a person, and her name was Frances Perkins. She told him all these things, and he believed her."
Following her tenure as Secretary of Labor in 1945, Ms. Perkins was asked by President Harry Truman to serve on the United States Civil Service Commission, which she did until 1952 when her husband died, and she resigned from federal service. Following her government service career, Ms. Perkins continued to be active as a teacher and lecturer until her death in 1965.