In the face of formidable anti-Semitic opposition, Lina Morgenstern was a highly successful feminist author, educator, and peace activist who was supported by many, including the Prussian Empress Augusta. In 1896 she organized the first International Congress of Women in Germany, which was attended by feminist leaders from all over the world.

Deborah D. Lipstadt is an American Jewish historian of issues surrounding understanding the Holocaust, ranging from reception of news of the extermination of European Jews to denial of the existence of the Holocaust. Lipstadt achieved renown for her defense against libel brought by David Irving, a British Holocaust denier. Her dramatic trial was transformed into a film starring Rachel Weisz.

Pati Kremer was one of the pioneers of the Jewish workers’ movement in Eastern Europe. Already an active member in the 1890s of the so-called Vilna Group, the precursor to the Bund, she remained closely associated with the Jewish workers’ party until her death in the Vilna Ghetto.

Isa Kremer (Belz, Bessarabia, 1887-Córdoba, Argentina, 1956) traveled the world performing art, folk, and classical music. She studied and sang opera in Italy but appeared as an art singer in Odessa, where she was the wife of Israel Heifetz, the editor of The Odessa News. Her great legacy is her Isa Kremer Sings Jewish Life in Song, a book and album of Jewish songs.

Hanna Krall is one of the most important Polish-Jewish writers and reporters. A Holocaust survivor, she portrays in her own extremely concise manner the vicissitudes of other survivors, rescuers, and perpetrators. Krall has been internationally recognized and her works have been translated into fourteen languages.

Lonka Korzybrodska was an active member of He-Haluz, a resistance movement during World War II. She participated in missions until her capture and died imprisoned in Auschwitz in 1943.

Rozka Korczak-Marla was active in underground resistance during World War II, serving in the United Partisan Organization to smuggle weapons into the Vilna Ghetto and help Jews escape. After the war she immigrated to Palestine and settled into kibbutz life.

Born in Breslau, Hedwig Kohn was one of the early woman pioneers in physics. After a narrow escape from Nazi Germany, she went on to teach at Wellesley College and pursue independent research at Duke University in the field of flame spectroscopy, measuring absorption features of atomic species in flames.

Broncia Koller-Pinell was a successful artist in the late nineteenth and early twentieth centuries and a contemporary of Josef Hoffmann, Kolo Moser, and Gustav Klimpt in Vienna. As a Jew and a woman creating art in Christian male-dominated spaces, Koller-Pinell remained true to herself and created beautiful artwork in spite of the adversities she faced.

Sarah Kofman was a French Jewish philosopher and professor who published many books on Freud, Nietzsche, Rousseau, and more.

Chajka Klinger, a member of Ha-Shomer ha-Za’ir, was active in the resistance against the Nazis in Bedzin and Warsaw. Her mission was to live, so that she could keep the flame and memory of resistance alive. Her diaries were the first written evidence about the Warsaw Ghetto uprising to escape Nazi Europe.

Reizia Cohen Klingberg began her career as a teacher, but when she began hearing reports of deportations and disappearances, she returned to occupied Krakow in 1942 and joined the ghetto’s underground movement. The group stole and smuggled weapons and attacked German officers. Despite being betrayed, arrested, and deported, Klingberg survived to be liberated by American soldiers at Auschwitz and subsequently moved to Palestine.

A Holocaust survivor from Vienna (1931-2020), Ruth Klüger emigrated to the United States in 1947 and pursued a career in academia. Her German-language autobiography weiter leben: Eine Jugend (1992) revealed her personal experience of the Holocaust to the public, establishing her as one of the leading public intellectuals on the Holocaust in Austria and Germany.

Holocaust survivor Gerda Weissmann Klein has used her experiences to educate countless people through her books, television appearances, and motivational speaking. Among numerous other awards for her work, Klein was appointed to the United States Holocaust Commission by President Clinton in 1997, and in 2011 she was awarded the Presidential Medal of Freedom by President Obama.

Bronia (Bronka) Klibanski was one of the heroic Kashariyot (couriers) of the Jewish resistance during the Holocaust. She became the primary kasharit for the Dror Zionist group in 1943, obtaining critical weapons for the Bialystok ghetto revolt, gathering intelligence, rescuing other Jews, and saving the secret archive of the ghetto.

In 1944, when the Germans invaded Hungary, gymnast Agnes Keleti bought fake identification papers and carried the bodies of the dead to mass graves during the battle of Budapest. After the war, she returned to gymnastics; her career highlight was the 1956 Olympics, where 35-year-old Keleti won many medals, including four gold for uneven parallel bars, balance beam, floor exercise and combined exercise-team.

Vita Kempner-Kovner was a heroic fighter on the front lines of the underground resistance to the Nazis.

Kashariyot were young women who traveled on illegal missions for the Jewish resistance in German-occupied Eastern Europe during the Holocaust. They smuggled goods, news, and other Jews in and out of the ghettos of Poland, Lithuania, and parts of Russia. While those who fought the Germans within the ghettos are often most celebrated for their heroism, kashariyot were essential in the survival of Jews within ghettos.