The Hans David Blum Collection documents his research of the history of his family and consists of correspondence, documents, photographs, manuscripts and notes, genealogical tables and trees, and clippings. Additionally there is a small amount of personal materials as well.

The Hans David Blum Research Collection documents his research on the Jews of Breisach and his ancestors that culminated in a book entitled Juden in Breisach, that was published in 1998. The collection includes Hans David Blums’s research materials such as printed materials, documents (mostly copies), correspondence with archives and individuals, genealogical charts and tables, lists, and a large amount of notes.

Financial, business, and personal papers of the Eltzbacher family and related families, including correspondence, architectural plans, financial ledgers, wills and testaments, clippings, and eulogies; of particular interest is the business correspondence of Count Aloys zu Kaunitz-Rietberg with the banker Jacob Loeb Eltzbacher (1758-1825), who was based in Neuenkirchen, Westphalia, along with supporting documents and records; material on the career of the lawyer Carl Eltzbacher (1854-1936), including clippings on his candidacy to the Cologne city council in 1903 and correspondence, including a letter from Konrad Adenauer.

Papers of Hans Epstein (1905-1960), educator and historian. The collection consists of documents relating to Epstein's teaching activities during Nazi rule in Germany, and in New York during and after the Second World War; correspondence from before the emigration with individuals and organizations (including with Martin Buber, and Adolf Leschnitzer of the Reichsvertretung der Deutschen Juden); personal and business correspondence relating to immigration in 1938 and Epstein's work in New York; posters and postcards.

This collection contains the papers of Hans Froehlich, a lawyer and later social worker. A dominant topic throughout the collection is the experience of persecution and the death of loved ones, and, connected with that, the lifelong struggle for restitution and compensation. At the same time, his professional life as a social worker as well as his personal interests and hobbies are reflected in the correspondence, printed material and personal writing found in the collection.

This collection contains a wide variety of materials by and about statesman Hans Schäffer (1886-1967) and his family.

The Hans Tramer Collection consists of 8 boxes and 52 folders.

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 contains the personal papers of members of the Hecht, Bielefeld, Günther, and Gottschalk families. Materials range widely in time period and content, providing insight into varied experience of these families from the mid-19th century to the mid-20th century. Materials include vital records, emigration records, apprenticeship and journeyman records for a merchant, education records, letters of recommendation, personal correspondence, military records from World War I and World War II, restitution claims, property records, tax and financial records, friendship books (Poesiealben), documents related to religious services during military service, family trees, photographs, a diary about emigration, and a Hebrew primer.

This collection documents the experience of Hedwig Geng née Berg (1891-1981) as a Jewish woman living in Munich during the Nazi regime and her survival of Theresienstadt. Materials include personal correspondence, official correspondence and directives, ephemera from Theresienstadt, identification papers, poems, notes, clippings, and a few photographs.

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.

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.

This collection contains a substantial amount of correspondence written by Heinrich and Toni Busse while in hiding in Berlin 1939-1945, as well as manuscript drafts of Heinrich Busse's anti-war writings, some of his personal papers and official documents.

This collection contains a large amount of business and legal correspondence and documents pertaining to Auerbach's tenure with Tri-Ergon AG and Tobis Tonbild Syndikat AG, most of which revolve around legal proceedings (patent and civil) in Germany, Switzerland, and the United States concerning Tri-Ergon's sound-on-film technologies which had become film industry standard. The collection also has a folder of Auerbach's personal papers, a considerable number of family and personal photographs (some arranged in albums), some personal correspondence, and a few manuscripts for film projects.

Correspondence from family members to Heinz Katzenstein in Gelsenkirchen and New York, 1933; travel and emigration documents, 1933-1939, including correspondence with freight forwarders and menues of S.S. Bremen; memorabilia related to 25th anniversary of Katzenstein & Co in Gelsenkirchen, 1928; correspondence with and clippings and other information about former classmates; correspondence regarding social security claims in Germany, 1981; photographs.

The Helen and Eva Hesse Collection holds material on the Hesse family of Hamburg. Most notable in this collection are the diaries of Helen and Eva Hesse, created by Wilhelm Hesse, which document the sisters' childhood. In addition, the collection includes scrapbooks and photograph albums, some of Wilhelm Hesse's educational papers, and correspondence related to immigration.

The Hellmann-Kromwell Family Collection includes a variety of documents of genealogical interest, including wedding, birth, and death announcements and family trees, with a particular emphasis on Dr. Johanna Hellmann's life and work. Some correspondence from the physicist Lise Meitner and the education reformer Helene Lange is also present.

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 consists of the papers of physician Henry B. Sachs and his family, including members of the related Sachs, Berlowitz and Marcus families. Included is information on the family's immigration, Henry Sachs's professional life, and other topics. The collection contains photographs and a photo album, a diary, correspondence, family trees, military papers, and various other family papers.

The collection contains documentation of the Henry Heinz Brecher family, including a questionnaire, vital records, articles, photographs, correspondence, and family trees.

The collection is made up primarily of letters written by Henry Rothschild while travelling, mostly to the United States.

The collection documents the work of Henry Besso and reflects various aspects of his professional life, personal research and writings in the field of Sephardic culture, Spanish language and linguistics, and Sephardic and Spanish history. Collection also documents Besso's involvement with Sephardic organizations and communities. Collection includes audio materials, brochures, booklets, clippings, conference procedures, correspondence, government publications, minutes, notes, photographs, printed matter, reports, speeches, and writings and translations by Henry Besso and others.

Notebooks and other manuscripts, as well as some correspondence and one photograph pertaining to the Rosenfeld and Henschel families.

This collection contains the family papers of Robin Hirsch, owner of the Cornelia Street Café in Greenwich Village, and child of German Jewish refugees, Herbert and Kaethe Hirsch. The collection is mostly made up of correspondence and photographs, dating from the 1910s-1980s, documenting Herbert's life in Berlin (especially his involvement in the Jewish rowing club "Ivria"), time as a World War I artilleryman, and refugee in London during World War II. Post-World War II materials in the collection mostly consist of Kaethe's restitution documents, correspondence between Robin and his parents, and material pertaining to Robin's academic and artistic pursuits.

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 contains a substantial amount of documents and correspondence pertaining to the emigration of members the Günzburger family of Lörrach, Baden, first to Switzerland in 1939 and then to the United States in 1941.

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.