Ingeborg Kahlenberg

The group filmed and photographed German activities and the famine and privations suffered by the Dutch, beginning in November 1944. It operated covertly, in violation of Nazi restrictions against photography outside domestic spaces in the Netherlands. Photographs taken by Ingeborg Wallheimer and Fritz Kahlenberg were instrumental in convincing the Red Cross to make food drops in Holland. In addition to photography, Wallheimer's resistance activities included illegal communications, transporting armaments, and forgery. Kahlenberg and Wallheimer married in 1946 and emigrated to the United States in 1949. They founded a film production company, Film Authors, Inc., which produced documentaries. The Jewish Museum in New York City featured an exhibition of work by members of the Hidden Camera group entitled The Illegal Camera: Photography in the Netherlands During the German Occupation, 1940–1945 in 1996. The Kahlenbergs died within two weeks of one another in October 1996, while the exhibition was on view.

• Name — Ingeborg Kahlenberg • Birth Name — Ingeborg Wallheimer • Born — 27 March 1920 • Birthplace — Bremen • Died — 2 October 1996 • Place of death — New York City • Citizenship — German, American • Occupation — Photographer, film producer • Years Active — 1944–1996 • Known for — Resistance photography during World War II • Spouse — Fritz Kahlenberg