This collection documents the life of the painter Hans Jacoby, who immigrated to the United States via Holland and Shanghai. Documents include family papers, personal writings, correspondence, brochures, official and other administrative documents, newspaper clippings, photographs and autographs.

The Harriet Hermine Spielberg Collection documents the early life of Harriet Spielberg (née Schottländer, widowed Schwarz). Most of the collection includes official documents; certificates; testimonials; passports and other personal items like photographs; and two notebooks with handwritten recipes and comments. It also contains correspondence and reports provided by her son, Eric (Erik) Schwarz.

The Harry Kranner Fiss Collection documents the life of Harry Kranner Fiss, especially highlighting his life in Vienna, Austria, in the 1930s, as a translator for the American military's prosecution team at the Nuremberg Trials in 1945, and his professional career. A smaller amount of material relates to the Kranner/ Fiss family and to the related Römer, Singer, and other families. The collection contains many manuscripts and drafts of articles, novels, and poetry; diaries; extensive photographs and photograph albums; correspondence; notes; official documents; programs; and other materials.

This collection holds materials relating to the life of Hedwig Strauss, a Jewish woman who perished during the Shoah. Although it is primarily composed of letters and postcards to her son Walter dealing with her life in Germany between 1939 to 1941 and her attempts to escape, it also includes further correspondence with and between family members as well as personal and official documents on Hedwig Strauss and her son Walter.

The Heidecker and Schmitt Family Collection largely documents the emigration experiences of members of the Heidecker, Schmitt, and related families, especially of Ludolf and Ruth (née Schmitt) Heidecker. The failure of some family members in leaving Germany is portrayed in these papers as well. Other subjects include the families' histories, restitution for their losses in the Holocaust, and the postwar interests of Ludolf and Ruth Heidecker, among other subjects. The collection includes extensive correspondence and photographs, material relating to Ludolf Heidecker's role in soccer associations, cookbooks and recipes, family trees, newspaper clippings, official documents, and other personal papers.

This collection contains materials on various members of the related Breslauer, Schäffer, and Heilberg families found in the records of Marianne Breslauer, her daughter Helen J. Breslauer, and her maternal aunt Frieda Heilberg. The lives of these family members and their relationships with each other are documented through correspondence, photographs, vital documents, professional and educational records, diaries, and family trees.

The Heinrich and Hulda Schwab family collection contains a small number of family papers pertaining to them and their daughter Ilse. The majority of the collection consists of photographs including family portraits and photographs from trips around central Europe in the 1920s.

The Heinrich Sontheim Collection contains mostly correspondence and some personal documents of the tenor Heinrich Sontheim.

This collection contains personal and professional papers of Helmuth (Harry) Kahn (1912-1987). Materials include vital documents, education records, and letters of recommendation for Helmuth Kahn from his time as a school teacher in Baisingen (Germany) as well as a family tree, clippings, and various research materials on the history of German Jewry in Württemberg. Materials related to a lecture series at the University of Vermont in Kahn's honor are also included.

The Helmuth Nathan Collection documents professional activities of Helmuth Nathan, physician, artists, teacher, and a historian of medicine. The collection includes brochures, booklets, clippings, correspondence, financial documents, minutes, notes, off prints, photographs, drawings, and writings.

This collection mainly consists of documents pertaining to Hilda and Henry Gottfried from Vienna, Austria. There are, for example, several photographs as well as official documents and letters.

This collection gives a diverse insight into the Henry Bauer family. It holds family trees, memorial and prayer books, notebooks, certificates and correspondence of different family members. The second part of the collection focuses more strongly on Henry Bauer and his life, elucidating the time he spent in Germany as well as the time after his immigration to the United States. His persistent efforts to obtain a visa for his younger brother and his parents to release them from Camp de Gurs are documented in official correspondence and documents, as well as in extensive correspondence with his parents between 1940 and 1941, which makes up the collection's largest part.

This highly diverse collection contains material of various sources, times, and genres, from Germany, Austria, Eastern Europe and Argentina. The documents included range from correspondence, such as letters, postcards or telegrams, to emigration documents, such as ship lists and permits, to vital records, such as family registers, various certificates and awards, to a number of small publications, such as brochures, programs and clippings. There is also a number of Jewish devotionals, including Yahrzeit calendars, religious graphics and prayer manuals, as well as some ephemera.

The Herbert Bloch Collection contains the personal papers of the classicist and medievalist Herbert Bloch, a Harvard professor. Prominent is correspondence between himself and his family, which mentions not only family news and the deaths, deportations, and experiences of family members but also references his own research, writing, and teaching. In addition to family correspondence is correspondence with colleagues and friends, former neighbors, and legal and financial correspondence. Other papers in the collection include poetry, educational certificates and diplomas, material relating to Herbert Bloch's academic career, family trees, obituaries, and photographs.

The Herbert Buky Collection documents the personal live of Herbert Buky and to a smaller extent the lives of other members of the Buky family. Included here are materials pertaining to Herbert Buky’s life in pre-war Germany, his immigration and his life in the United States after World War II. The collection consists of correspondence, documents, printed materials, unpublished manuscripts, and photographs.

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.

This collection contains official documents and official and personal correspondence illustrating the dentistry student Herbert Mansbach's time as a refugee in Switzerland and his attempts to emigrate.

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.

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.

The Herta and Egon Wells Family Collection centers on the emigration of Herta (née Guttmann) and Egon Wells from Vienna to New York by way of Trinidad, with further documentation on their lives prior to and following emigration. Documents relating to the emigration experiences and attempts of other family members are also present. About half the collection consists of personal correspondence, but it additionally includes official documents, immigration and citizenship documentation, educational and professional documents, memorabilia, legal correspondence, a few family photographs, and newspaper clippings.

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 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 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.

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 Hugo Fantl Collection provides a brief glimpse into the life of businessman Hugo Fantl as well as a more detailed view of his family's restitution claims. Included are papers of Hugo Fantil such as official, military, professional and financial documents, restitution correspondence and legal papers.

This collection holds the papers of the lawyer and librarian Hugo Knoepfmacher. The main subject of the collection is his personal and professional life, although material concerning other members of the family is also present. The collection consists of official documents, notes, correspondence, manuscripts, some clippings, and a very small amount of published material.