Materials by and about the opera soprano Judith Sander, including original documents, clippings, photographs and sound recordings.

The Julius and Elisabeth Hirsch Collection holds the papers of this couple, with much of the collection consisting of family correspondence. Prominent subjects include the immigration of family members and genealogy of the family. In addition to extensive correspondence and family trees the collection includes notebooks, essays and articles, newspaper clippings, photographs, early drafts of Julius Hirsch's family memoir, and research notes.

This collection contains a large volume of correspondence, as well as manuscripts, diaries, scrapbooks, and clippings all documenting the cultural production of the theater critic and dramatist Julius Bab. The correspondence notably contains large amounts of original letters from Gustav Landauer, Gerhart Hauptmann, Richard Dehmel, and Fritz Mauthner, and several other leading cultural and political figures from the first half of the 20th century.

The collection contains photocopies of various documents relating to numerous members of the Glass family and their activities during the early 20th century. There are also several family trees.

The collection comprises various official documents and correspondence of Julius and Bertha Hirsch née Fenster during the interwar-period and years of World War II.

This collection contains a large number of letters from the immunologist Julius Morgenroth to his family, especially to his wife Getrude née Bejach. Correspondence from other family members and professional acquaintances is also present, as are some photographs and a small number of personal and professional papers.

This collection contains the personal papers of Julius Schellenberg (1916-1994). Originally of Goddelau, Germany, Schellenberg immigrated to the United States in 1937, where he lived in Brooklyn, New York. He served in the U.S. Air Force in the Pacific Theater of World War II. The collection includes family correspondence, scrapbooks of boating and cycling trips, a military diary and photograph, a family tree, and track and field awards.

School documents; reports; photos. Letters from World War I (Feldpostbriefe). Diaries from World War I

The collection traces the history of the Kaiser family and the lives of its members over the course of the 20th century through correspondence, documents, writings, family history information, and photographs.

The Kalischer Family Collection contains genealogical research and a few family papers. Included in the collection are genealogical tables, related articles, a small amount of correspondence, and photographs.

This collection contains family trees with data going back to 1495, as well as some correspondence and other papers and photographs.

This collection contains assorted items regarding the Jewish community in Karlsruhe: photocopied excerpts from Carlsruher Wochenblatt, 1774-1775 about court cases; manuscript of songs and prayers on occasion of Prince Carl Ludwig Friedrich and his wife Stephanie Napoleon's visit to the Karlsruhe synagogue on July 18, 1806; manuscript entitled Geschichte und Schicksal des Karlsruher Judentums, an unpublished 1985 research paper by the Karlsruhe municipality, containing lists of Jewish residents in Karlsruhe during the 1930s and their fate. Includes extensive appendix of names and last known fate.

This collection documents the history and some of the activities of the Kartell-Convent deutscher Studenten jüdischen Glaubens and its American successor organizations. Among the records are financial papers, organizational correspondence, published and unpublished essays and articles, photographs, autograph books, meeting minutes and reports and publications.

This collection documents the life and work of the law librarian Kate Wallach. Contained in this collection are papers relating to her personal life, mainly her correspondence between her and her parents and her brother when she was already in the United States, as well as official documents and professional correspondence between her as a law librarian and members of other academic libraries. Kate Wallach was among the first 150 women to practice law in the state of Wisconsin.

The Katzenstein Family Collection holds the papers and correspondence of Martin Katzenstein and Anna Charlotte Katzenstein. The collection contains genealogical materials, personal letters, and official papers relating to Anna's time spent living in England and Chile.

The collection contains family trees of the Kempner, Davidsohn, and Wolffsohn families from the mid 18th to early 20th century, including birth dates and some death dates, as well as brief biographies of David Kempner and Friederike Kempner.

This collection contains the family papers of the Loewald and Landshut families, notably personal and vital papers from before, during and after World War II which illustrate both the family's history and personal and professional lives. In particular, this collection amply documents the family's emigration in 1939, as well as a relative's internment in Theresienstadt, through legal documents and personal and official correspondence. There are also a large number of photographs illustrating Rosa Loewald's work as a nurse during World War I.

This collection contains assorted primary and secondary materials relevant to the former German-Jewish community of Königsberg, including programs from the synagogue and local Jewish organizations, curricula for Jewish education in Königsberg, and materials on the development of a prayer book for the New Synagogue.

This collection mainly consists of documents pertaining to the conductor Kurt Adler. Primarily there are documents about his life and his professional career, but there are also documents concerning the restitution of lost property of his parents.

The collection contains materials relating to Kurt Goldsmith, a New York-based photographer, and his wife Grete née Lendt. Kurt and his family escaped Nazi Germany to ultimately settle in New York City. The materials trace the journey that they and their family took to seek asylum in the United States. The collection is made up of personal documents, correspondence, photographs, and other archival materials.

This collection contains materials about the family of Kurt and Ruth Neu. Personal materials include family correspondence, photographs, and genealogical information, while professional materials for both Kurt and Ruth Neu include unpublished typescripts.

This collection documents the personal and professional life of aerospace engineer Kurt Heinrich Hohenemser (1906-2001) in Germany and the United States. Mainly comprised of diaries and correspondence, materials in this collection describe Hohenemser’s education in Germany, work at and dismissal from the University of Göttingen in 1933, work for the aircraft manufacturer Anton Flettner during World War II, attempts to regain his position at Göttingen, and his family’s immigration to and new life in the United States. Correspondence with family and friends throughout Germany includes discussion of the political, economic, and social situation in Germany both during the World War II and during the post-war and Cold War periods. Also included in the collection are official documents and correspondence pertaining to Kurt Hohenemser’s parents, the musicologist Richard Heinrich Hohenemser (1870-1942) and his wife Alice Matilda Florence Hohenemser née Salt (1879-1942).

The Kurt Roberg Collection focuses on the immigration and wartime experiences of Kurt Roberg and other members of the Roberg and Marx families, in addition to documentation on the genealogy of the families. The collection contains considerable correspondence, official and other documents, photographs and genealogical research.

This collection documents the personal life and professional career of art director, editor, and photographer Kurt Safranski (1890-1964), who co-founded the photo agency Black Star in 1935. The collection also includes information about the career and life of Kurt’s daughter, Tina Fredericks-Koch, née Safranski (1922-2015), who worked as an art director for magazines and in real estate.

The file contains various documents pertaining to Kurt Singer.

This collection contains family papers of the Zander and Prager families, as well as some of Kurt Zander's personal papers. There are several photographs of various family members and family homes in Prussia and Turkey, and a body of correspondence which documents the Zander family's time in Turkey and Greece in 1904-1905.

The Landau Family Collection holds documents pertaining to the restitution claims for the estate of Marianne Landau, including their property located at Pariser Platz 6a in Berlin. The correspondence in the collection details the efforts, sought out by the heirs of the Landau family, to receive compensation for a number of assets lost during the Nazi's reign and World War II. Also included are photographs, as well as legal, financial, and genealogical documents relating to specific members of the family.

This collection contains several business papers of the cotton mill M. S. Landauer in Hürben, Baden-Württemberg, and Augsburg, Bavaria, as well as several Landauer family documents and some correspondence. A large second series consists of extensive Landauer family trees.

The collection contains various letters, certificates, photographs, and printed materials relating to the families of Carl Heinz Gans and Ruth Landsberger.

The collection consists of materials pertaining to the Lask family, in particular to the fancy goods business (Galanterie- und Luxuswarengeschaeft) “Michael Lask” in Kiel (founded in 1869, and forced out of business and sold in 1938).