American consumer advocate who worked to make product information available to the public.

Peterson earned a bachelor's degree (1927) at Brigham Young University in Provo and a master's (1930) at Columbia University Teachers College in New York City. She then taught at a private girls' school in Boston and in the summer of 1932 began a long-term professional involvement with women in the work force, first as a teacher at the Bryn Mawr Summer School for Women Workers in Industry (1932–39), then as assistant director of education and lobbyist for the Amalgamated Clothing Workers of America (1939–44, 1945–48), and from 1958 to 1961 as the Washington legislative representative of the industrial union department of the AFL-CIO. These positions provided Peterson with the necessary training for a variety of positions in the United States Women's Bureau of the U.S. Department of Labor, where she worked from 1961 to 1969. During that period she also served on presidential commissions on the status of women and consumer interests. Peterson's initiatives as a consumer advocate included truth in advertising, uniform packaging, unit pricing, and nutritional labeling. Afterward Peterson held a variety of positions, including consumer adviser to the Giant Food Corporation and chairman of the Consumer Affairs Council. As a senior citizen she served on the board of the United Seniors Health Cooperative. In 1981 Peterson received the Presidential Medal of Freedom.