The Vera Margot Kowalski Soliman Family Collection contains correspondence on Vera Margot Kowalski Soliman's legal and financial matters.

This collection documents the lives of Vera Meyer's family members, especially her parents, Alfred and Eva Meyer, but also involving her grandparents and uncles. Prominent in the collection are the many family photographs and copies of family correspondence, including immigration and wartime letters. Other material consists of some biographical essays and a family tree.

Most of the collection consists of correspondence exchanged between the novelist and screenwriter Vicki Baum and Carl Ostertag, a younger confidant. The collection also includes an unpublished manuscript version of her "Adolf Kringelein" story, which was later expanded into the novel "Menschen im Hotel" and the film "Grand Hotel."

This collection documents the work of the concentration camp survivor Viktor Kupfer (later Victor Cooper) as a business custodian, special investigator, and Jewish community leader in Straubing (Bavaria, Germany) from 1945-1949. The collection relates primarily to the denazification process and early restitution cases in Straubing as well as the rebuilding of Straubing’s Jewish community. Materials included consist of correspondence, legal statements, affidavits, court decisions, reports, Viktor Kupfer’s personal identification documents, and a few copies of photographs and memorial programs. Several documents contain anonymous threats.

The Vilna Collection represents fragmentary materials that were part of the original YIVO Archives in Vilna before WWII. The collection includes a wide array of materials dealing with a great variety of aspects of Jewish life in the Pre-revolutionary Russian Empire and post-revolutionary Poland, Ukraine, Lithuania, and Soviet Russia. The Collection consists of personal correspondence, official correspondence with organizations and governmental institutions, financial and statistical reports, minutes of meetings of Jewish communal and political organizations, bibliographic materials, including card catalogues and bibliographies. Also included here are vital documents, such as birth certificates and birth registers, affidavits, certificates, diplomas, and travel documents. Additionally, there are petitions, resolutions, appeals, printed materials, manuscripts, lists, and questionnaires. There is a wealth of materials dealing with Jewish book trade and publishing, youth and sports organizations, education, Jewish communal life, and political activities.

Folder 1 contains several unique originals including a Reisepass from 1800 and signed letters from Friedrich Wilhelm III of Prussia, an 1867 edition of satirical paper "Maseltow," printed in Königsberg, a Trauer-Album for Bertha Bloch (1915). There are copies of an 1833 marriage contract for Naumann Simonsohn and 1831 Reisepass for Simonsohn. There are also various letters and short manuscripts recounting the history of the Bloch and Simonsohn family. Folder 2 contains several congratulatory letters in Hebrew and German addressed to Naumann Simonsohn regarding his book "Juda oder freimutige Äusserungen über Religion und Bürgerglück", dated ca. 1817.

The W. Louis Horowitz Collection documents the professional work and academic interests of the anthropologist Wolf Louis Horowitz (1866-1946). The collection is divided into two series: Personal Documents and Manuscripts. The bulk of the collection resides in Manuscripts. This series holds drafts and finished versions of Horowitz's writings. Horowitz used anthropological theories as a lens through which to analyze Judaism and its impact upon history.

This collection consists mainly of correspondence among the Wachtel family members in the 1940s. Regina and Markus Wachtel were both deported and perished in the Holocaust. Their older son Leo immigrated via England to the United States. Their younger son Arnold survived imprisonment in several concentration camps, but disappeared in 1946, seemingly murdered. In addition to correspondence, a few official documents and restitution materials are included.

The Waller Family Collection contains genealogical research on the Waller, Baer and other related families. It includes research correspondence, notes, photocopied historical records of family members, family trees, and photographs.

The collection consists of materials documenting the lives of the Friedemann and Friedheim families. Included in the collection are family and professional correspondence, documents, musical scores by Walter Friedemann, poetry by various family members, a last will, and printed materials

The collection contains a wide variety of official papers and personal correspondence of Walter and Edith Pelz before, during, and after World War II. Much of the correspondence is between prominent personalities in the journalism and arts world of that era.

The lives of Walter and Hedwig Grossmann are documented in this collection through both textual and visual records. Series I focuses on the former, specifically correspondence and educational records. Series II shows the life of the couple, their families, and friends through photographs, with a particular emphasis on the Grossmanns’ travels.

This collection documents the education and immigration of Herta Fleck née Froehlich (1908-1994) and Walter Fleck (1903-1990). Both born in Mönchengladbach, Germany, Herta and Walter studied medicine and economics, respectively. They married in 1935 and immigrated to the United States, settling in New York. The collection contains vital records, education records, official documents, and restitution materials.

Correspondence between Constantin Brunner, Lotte Brunner, Walter Bernard, and Yehudi Menuhin.

The bulk of this collection consists of manuscripts, correspondence and clippings that were written and collected by Walter Breslauer in London, touching on his personal and professional memories as an administrative director of the Berlin Jewish community. Also included are items related to Walter Breslauer’s father, Bernhard Breslauer. The papers had been sent to the Leo Baeck Institute New York in 1970.

The Walter Eberstadt Collection documents Walter Eberstadt’s efforts to recover art works belonging to his grandparents that were appropriated by the Nazi government. The collection consists of Walter Eberstadt’s correspondence with lawyers, art historians, museum, and government organizations in Holland and Germany. Additional materials include printed materials, invoices, and publications about Jan Toorop’s art.

The Walter Friedlaender Collection describes the professional life of this art historian. The major focus of the collection is his work on sixteenth and seventeenth century artists. It includes correspondence, a few published works, photographs, lecture and manuscript notes, art reference files, newspaper clippings, and poetry.

This collection holds papers of members of the Loewenstein family, especially Walter and Karl Loewenstein. Among the papers here are examples of Walter Loewenstein's writing, documentation of life in Rietberg in Westphalia (Germany) during the late 1930s and early 1940s, and correspondence concerning the fate of several family members during this time. Papers relating to Karl Loewenstein focus on his wartime activities. The genealogy of the Brandenstein family is also represented here along with a few papers of other family members. The collection consists of unpublished manuscripts, correspondence, photographs, official and restitution documentation, notebooks and notes, genealogical research, and fliers.

Folder 1 contains writings of Plaut to his congregation Temple Emanuel of Great Neck (1962-1964); diary of Plaut addressed to his aunt Ada written in August 31st, 1931.

Folder 2 contains Five brochures published by the Temple Emanuel of Great Neck: “Events of dedication of the new temple” – brochure for the dedication festivities of a new sanctuary on April 19, 1959. “A sermon in metal” – brochure by Rabbi Walter H. Plaut, describing Ludwig Wolpert’s art work, 1959 (?). “Columns to my congregation” by Rabbi Walter H. Plaut, vol. 3 (fall 1960) and vol. 4 (summer 1963). “A service of tribute to Rabbi Walter H. Plaut” – program guide for the temple service on January 8, 1965.

This collection documents the history of the Harold (formerly Isaac) family. The collection focuses mainly on the brothers Walter and John Harold (born Walter Isaac and Hans Harald Isaac, respectively) and their family history going back to their earliest known ancestor, Herz Isaac of Hesse, Germany. Materials include vital documents, a family history narrative, photographs, passports, correspondence, notebooks, immigration papers, inheritance papers, and a few clippings.

The bulk of the collection contains material pertaining to Jewish life in Braunschweig, Germany, before World War II, including documents from Walter Heinemann's life in Braunschweig during the 1930s and material pertaining to the larger Jewish community and its prominent members. The collection also contains photographs of concentration camps and material pertaining to prominent Jewish individuals and organizations. Included are correspondence, photographs, government forms, notes, speeches, and clippings.

The collection documents professional activities of Walter Herzfeld in the period before WW II and also, to a smaller degree, professional activities of his grandfather Abraham Herzfeld. The bulk of the collection consists of financial and legal documents and professional correspondence. Also included here are printed materials, drawings, personal correspondence, and educational documents.

Materials comprising the Walter Hochstadter Collection are quite fragmentary in nature and give us only a rather patchy understanding of the history of the Hochstadter family and Walter Hochstadter’s professional activities. Included here are correspondence, photographs, and printed materials

This collection documents the lives of Walter Liebling, his mother Jenny Liebling, his sister Elsbeth Liebling, and his wife Rita Liebling (neé Hagelberg). The family lived in Berlin until their immigration to New York in 1941. Included are documents related to their education, their professional careers, their interest in music, and their immigration. The extensive amount of correspondence offers a detailed insight into the lives of immigrants trying to establish themselves in their new environment.

Records pertaining to the life and business activities of Walter Ornstein, proprietor of beauty salons and purveyor of cosmetics. These include business records and patents pertaining to Goubaud, the perfume business that Max and Elsa Fahrer began in Vienna and that Walter Ornstein reestablished in New York. Also included are photograph albums, song lyrics and letters from a suitor of Gertrude Goldschmidt that date to her life in Vienna prior to emigration and marriage to Walter Ornstein.

Unpublished manuscripts on the genealogy of the various ancestors of Walter S. Hertzmann.

The collection consists of materials (mostly official documents) pertaining to the physician Walter Silberbach (1892-1981) and his family.

This collection contains published and manuscript music, mostly Lieder, by composer Walther Hirschberg (1889-1960).

This collection contains a small amount of Rathenau's correspondence and several manuscripts and clippings about Rathenau and his family.