The collection mainly consists of Herbert Jonas' and his family members' private correspondence and personal documents. There are also some writings, photographs and a collection of newspaper clippings.

The Herbert Strauss Collection documents the life and professional activities of Herbert Strauss, writer, historian, and teacher. The collection includes correspondence, court procedures, documents, lists, manuscripts and lectures, notes, photographs, printed materials, and a small amount of teaching materials. Materials constituting the collection reflect various aspects of Herbert Strauss’ personal life, teaching, research and writings in the fields of German-Jewish history and relations, Anti-Semitism, and assimilation. The collection includes both, personal and professional materials related to Herbert Strauss, with personal being by far the smaller.

Official documents, correspondence, diaries, lecture notes and other manuscripts (an autobiography), as well as eulogies, transcripts and published materials.

The Hermann Baerwald Papers holds documenation of and about the educator and historian Hermann Baerwald. Included in the collection are a number of articles about and by him, correspondence, notes, and a few photographs.

The Hermann Ehrlich papers contain handwritten documents on the genealogy of the Ehrlich, Rosenbaum, and Romberg families, including family trees. It contains also the collected work of Hermann Ehrlich as a cantor and teacher, including hymn books and sheets of music. Furthermore there are notes on the life of Hermann Ehrlich.

The collection contains the papers of Hermann Lewin and his family. Also included are materials pertaining to Salman Schocken and the Schocken family, which was related to the Lewin family by marriage.

The Herta and Carl Mayer Collection holds the assorted papers of Herta Mayer (Fuchs/ Fox) and her husband Carl (Karl) Mayer. Included in the collection are scattered documents of the Fuchs family members, Moric, Alice and Richard Fuchs. The collection primarily consists of Herta Mayer’s official documents and correspondence regarding immigration and restitution attempts after 1945. Photographs and family correspondence can be found as well.

This collection details the lives and immigration experiences of Herta and Leo Leab. Given Herta Leab's experience as an executive in the Scherk cosmetics company and as the owner of her own company, Hedda Maar Cosmetics, it includes significant material on the cosmetics industry in Germany and the United States. Losses suffered by the Marcus, Liebeskind, and Scherk families in Nazi Germany and the Leabs' efforts to receive restitution are also well documented, along with some material on the town of Gilgenburg (now Dabrowno, Poland) and World War I. The collection is comprised of extensive personal and business correspondence, family and official papers, notebooks, clippings, and a few photographs.

The collection contains typescript drafts of Nathorff's writings, materials on Leopold Treitel and the Jewish community of Laupheim, and genealogical materials

The Herz-Aschaffenburg Family Collection holds the personal and professional papers of members of the Herz and Aschaffenburg families, as well as related families. Most prominent among the individuals featured here are John (Hans) Herz and Gustav Aschaffenburg. In addition to the papers of family members, this collection holds material on genealogy and the family history. Included in this collection are family correspondence along with a smaller amount of professional correspondence, professional and official papers, family trees and related correspondence, published and unpublished writings, World War I diaries, and a few clippings.

This collection contains the personal papers of Hilda Levy and her family. Born in 1905 in Tauberbischofsheim, Germany, Hilda Levy managed her family’s shoe store before immigrating to New York City in 1935. Materials in the collection include correspondence, vital records, inheritance and restitution materials, education records, emigration records, and photographs.

This collection contains the personal papers of Hilde née Friedmann and her immediate family. Born to a cattle dealer in Bavaria in 1901, Hilde fled Germany for Palestine and then the United States, where she worked as a seamstress. Included are official documents, correspondence, restitution materials, and photographs.

The collection contains letters and postcards as well as photographs and slides. The majority of letters were written by Hildegard Josephine L. Wirtz to her mother-in-law, Hedwig Hellmann. The letters document her wedding with Ulric Hellmann and then follow her emigration to the United States. Photographs and slides show mainly the Wirtz family and document the wedding.

The Hirschberg-Goldmann Family Addenda holds documentation on the lives and emigration of Harry and Leonor Harter, originally of Breslau. It additionally contains research, conducted by their son, into the history and genealogy of the Hirschberg and Goldmann families and their relations, as well as into the fate of his maternal grandparents, Siegfried and Käthe Goldmann. The collection includes material about the Breslau Jewish community, especially about its Storch synagogue and the Cosel cemetery (Legnica Street cemetery). The collection contains many copies of historical documents, extensive correspondence, photographs and a photo album, copies of articles related to the research of the collection, and some family trees.

This collection mainly consists of documents pertaining to the genealogy research of Josef Hadar, as well as personal documents of his parents Elsa Graetz and Ludwig Hirschbruch.

This collection contains family correspondence received by emigrated members of the Hirshkind family in New York from relatives in Düsseldorf in 1940-1940.

The Hirschland Bank and Family Collection contains the family papers and banking records of the Hirschland banking firm established by Simon Hirschland in Essen. Family papers pertain to members of the Hirschland, Grünebaum, Neumann and other families, with an emphasis on family members' emigration and role in the family firm. Banking records focus on the history of the family firm from the 1930s through the 1960s, including records of successor financial firms. The collection includes prolific correspondence, banking files and financial records, family papers, official documents, photographs and photo albums, contracts, and other papers.

This collection consists of the personal papers of the Hochherr family of southwestern Germany. Materials include vital records, photographs, a genealogical chart, a family history, official records of family members’ deportations and deaths in extermination camps, an account of life in Nazi-occupied Holland, and an account of an escape to Switzerland. With the exception of the photographs, the collection consists entirely of photocopies.

The collection consists of 5 manuscripts written by members of the Honigmann, Pupko, and Bauer families and one family tree.

Horst Rosenberg (1925-2010) was born in Koblenz, Germany and emigrated to England via a Kindertransport and eventually immigrated to the United States. This collection consists mainly of his personal correspondence, emigration and immigration papers, and restitution materials. Other items include official papers on his parents, Max and Rosel Rosenberg, a few positive and negative photographs, and a handwritten poem.

The collections consists of so called “Rothschildiana”, which describe assorted documents of interest pertaining to the Rothschild family and their influence on the economic history of Europe. Specifically, there are original autographs; transcripts of original documents; photographs; correspondence; and manuscripts about aspects of the Rothschild family. Of special interest is an extended family history by Albert J. Phiebig, The descendents of Mayer Amschel Rothschild, which was compiled in the 1940s.

The collection contains documentation of the lives of Heimann Posener and Jenny née Reinhold in Germany and their emigration from Germany to the United States via England. Included are various identity cards; correspondence pertaining to obtaining American visas and ship tickets; and correspondence pertaining to storing furniture and household goods in Germany and shipping the items to the United States.

This collection contains materials pertaining to the search for Hugo Rosenthal, a German soldier who fought in World War I. During the battle in Hrodna (Grodno), Hugo Rosenthal was wounded and disappeared. The collection includes the correspondence related to the search for Rosenthal conducted by his wife, Lina Rosenthal. The collection additionally includes newspaper clippings, business records, and some photographs.

This collection contains materials related to Hildegard Hess and to the Hess family. Included is correspondence between Hildegard, Arnulf, and Louis Hess and their parents, Ida and Nathan Hess, during the early years of World War Two. Other materials include a four-part epistolary narrative of the 1940 journey of Arnulf Hess and his family to Bolivia, via Amsterdam, Lisbon, and Costa Rica. The collection also contains additional correspondence, official documents, genealogical tables, and photographs. Much of the German material has English translations.

The Ida Ehre Collection contains material on the actress and theater director Ida Ehre. Much of the papers in this collection focus on her postwar work as director of the Hamburger Kammerspiele; biographical information on the actress is particularly evident, along with correspondence with her friend Liselotte Sperber. The collection is comprised of articles, newspaper clippings, Hamburger Kammerspiele programs, personal correspondence, obituaries and a few photographs.

This collection consists primarily of letters from Ilse Glaser Dean to her later husband, Eric Henry Dean between 1952 and 1964. It also contains many photographs of the Deans and their relatives and friends from the 1930s until the 1970s. Additionally it holds correspondence by Wolfgang Schwerin to Ilse and Eric Dean between 1952 and 1988 and a collection of official and personal documents.

This collection contains personal and official documents pertaining to the family’s immigration to the United States and their situation in Germany as the political climate deteriorated. Included are a large amount of personal letters, supplemented by various other documents from government and military offices, some genealogical and tracing certificates, as well as other various material.

The collection holds correspondence showing mostly the personal lives of the Arnhold family from Dresden throughout the first half of the 20th century. The letters discuss family affairs like the engagement of Ilse Arnhold in 1913 and the birth of her children, travels through Europe, and longer stays abroad as well as the everyday lives of the family members.

Items in this collection document deportation, family separation, immigration and efforts to seek restitution by Ilse Gamper. Medical, financial and employment records can also be found in this collection as well as correspondence and photographs.

This collection contains documents pertaining to the family history and biography of Ilse Strauss in Krefeld (Germany), England, and Australia. Included are family trees, manuscripts, diaries, photographs and correspondence.