Caroline Bamberger Frank Fuld (nickname, "Carrie"; March 16, 1864 – July 18, 1944) was an American businesswoman and philanthropist most noted for co-founding (with her brother Louis Bamberger) the Institute for Advanced Study in Princeton, New Jersey.
Caroline ("Carrie") Bamberger grew up in Baltimore, the fifth of six children born to Elkan Bamberger, who had emigrated from Bavaria in 1840, and Theresa (Hutzler) Bamberger, who was heir to a large Baltimore department store. Her siblings were Clara "Lavinia" Bamberger; Rosa Bamberger; Louis Bamberger; Julius Bamberger; Pauline Bamberger; and Julia Bamberger. Fuld moved with her brother Louis to Philadelphia in 1883, and the two of them, with business partners Louis Meyer Frank and Felix Fuld, started the business that became L. Bamberger and Co. The four partners all worked in the store and developed new methods of retail advertising and selling.
Fuld married Louis Frank in 1883, a marriage that lasted until the latter's death in 1910. In 1913, she married her other business partner, Felix Fuld, outliving also his death in 1929. Neither marriage produced children. Bamberger and Fuld sold L. Bamberger and Co. to R. H. Macy and Co. in June, 1929, before the stock market crash. Subsequently, Fuld devoted her energies to philanthropy. With her husband, and continuing after his death, she contributed to Jewish charities, including Newark's Beth Israel Hospital, the Jewish Relief Committee, and Hadassah. In 1931, she was elected national director of the National Council of Jewish Women.
Most remembered, however, is the decision in 1929 by Fuld and her brother to seek the advice of Abraham Flexner, and subsequently to support, and endow financially, his vision for what became the Institute for Advanced Study in Princeton. Fuld and Bamberger contributed $5 million in 1930 for its initial endowment, and approximately $18 million in all over time. Fuld was vice-president of the nascent Institute until 1933, and thereafter was a life trustee.