Under the employ of the New York Kehillah, detective Abraham Shoenfeld infiltrated and documented Jewish crime rings, prostitution houses and gambling establishments from 1912 to 1917. For the American Jewish Committee from 1938 to 1964, he investigated anti-Semitic organizations and individuals. He also authored a controversial book about the New York crime world, The Joy Peddler, and he was at work on other pieces of fiction and his memoirs. The bulk of his papers consist of investigative reports and research for the American Jewish Committee, his manuscripts, and his collection of anti-Semitic literature.

The Adolf Leschnitzer Collection documents the life and professional activities of Adolf Leschnitzer, researcher, historian, and teacher. The collection includes brochures, booklets, clippings, correspondence, financial, vital, and immigration documents, minutes, notes, photographs, printed materials, and writings, by Adolf Leschnitzer as well as other authors. Additionally, there are materials dealing with other members of the Leschnitzer family, namely his wife, Maria Leschnitzer, née Bratz, her mother, Elly Bratz, née Michael, Adolf and Maria Leschnitzers' son, Michael Lesch, also known as Michael Leschnitzer, and Adolf and Albertt Frank.

The American Federation of Jews from Central Europe Collection consists of the Federation’s office files. This includes professional correspondence, by-laws, materials related to meetings and lectures, newspaper clippings, photographs, meeting minutes, reports, speeches, drafts, financial records, legal documents and forms, materials related to immigration and naturalization, newsletters and circulars, membership records, personnel files, restitution materials, oral history transcripts, and items of various related organizations and synagogues. There are also some personal documents sent to the AFJCE by members of the public.

Bernhard Kahn dedicated 50 years of his life to welfare activities in order to help distressed Jews. Among others he worked for the Hilfsverein der deutschen Juden, the American Jewish Joint Distribution Comittee and the American Joint Reconstruction Foundation .The collection contains personal as well as professional correspondence, articles on Bernhard Kahn’s work and biography, lectures and speeches by him and a number of official documents such as letters of consignment, citizenship papers and educational and professional certificates.

This collection holds the personal documents and written works of Eva Dukes, an Austrian Jew who escaped Nazi persecution and immigrated to the United States. In her later years, Eva wrote extensively about her early life in Austria, her family, and her experiences facing the rise of Naziism in Europe. Along with her writings, this collection includes photographs, official documents, correspondence, restitution papers, and other materials pertaining to the life of Eva Dukes.

This collection of mainly anti-Semitic material was compiled by a Jewish librarian of German descent who infiltrated the pro-Nazi community developing in New York City in the years leading up to World War II. The bulk of the collection consists of publications and printed matter, with the notable exception of narrative reports that describe first-hand experiences and observations of Nazi-affiliated events. Document types include advertisements, event announcements, books, clippings, correspondence, magazines and newspapers, travel guides, political memorabilia, and other print ephemera.

The Herbert Strauss Addenda contains subject files and writings from Strauss’ position as the executive director of the American Federation of Jews from Central Europe. These include correspondence, reports, newspaper clippings, newsletters and pamphlets, and writings, including manuscripts and dissertations in the field of German-Jewish history and related topics.

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 Institute of Jewish Affairs was a scientific and research organization attached to the World Jewish Congress. The collection consists of brochures, reports, surveys and other research publications. The materials address the plans, goals and activities of the organization as well as containing studies of Jews in Nazi-occupied Europe, Jewish life in the postwar era in various countries and political events influencing Jewry and anti-Semitism. The collection also includes analyses of international legislation on questions which were influencing the Jewish situation within the spheres of human rights, minorities and migration at the time.

The Papers of Max J. Kohler (1871-1934) document his life's work as lawyer, historian, writer, researcher, and defender of Jewish and immigrant rights. Correspondents include many of Kohler's contemporaries in the field of history and immigration law including Cyrus Adler; William Taft; John Bassett Moore; Mortimer Schiff; David Hunter Miller; Baron and Baroness de Hirsch; the Straus Family including Oscar Straus; Luigi Luzzatti; Leon Huhner; and Julian Mack. Subjects include U.S. immigration law, American-Jewish history, Col. Alfred Dreyfus, Haym Salomon, Ellis Island, Rabbi Kaufmann Kohler, the publication God in Freedom, international treaties, and the Peace Conference of 1919.

This collection consists of the papers of Nathan Perlmutter, a lawyer, lecturer, author, political activist, and a long-time leader of the American Jewish community. It contains certificates, newspaper clippings, correspondence — including numerous condolence cards and letters sent to his family after his death — manuscripts and drafts of Perlmutter’s writings, obituaries, printed materials, programs, and subject files relating to topics he was interested in and that he wrote about.

University professor, historian, and scholar Oscar I. Janowsky sought to understand Jewish culture and human rights in light of modern anti-Semitism, imperialism, and pluralistic states. Throughout his robust career he was a professor of history at the City College of New York, he also served as an advisor to League of Nations High Commissioner James G. McDonald, directed and authored major studies in the fields of Jewish community centers and education. The papers in this collection include his correspondence with colleagues and friends, research notes and article drafts, and his unpublished memoirs.

This collection contains documents of journalist and left-wing political activist Paul Novick, consisting mainly of correspondence, subject files, manuscripts, photographs, and newspaper clippings. These materials relate to Novick’s career as long-time editor of the Morning Freiheit (Morning Freedom), his important role in the worldwide Communist movement, the history of the Freiheit itself, and Jewish and general politics. These materials demonstrate Novick’s important, and changing, role in the history of Communism, as well as his career as a Yiddish journalist and author.

This collection contains correspondence, official documents, photographs, and other archival materials pertaining to Ralph Moratz (1931-2016) and to his project to locate fellow survivors of his Kindertransport from Berlin to France in 1939. After arriving in France, Moratz and thirty-nine other boys sought refuge in the Chateau de Quincy, a Jewish Orphanage near Paris. In 1941, Moratz was able to escape occupied France with assistance from the Children's Aid Society OSE and resettle in New York.

The primary focus of the Renee Aldor Collection is on the immigration experience of Renee and Ernst Aldor and Ernst Aldor's internment in Dachau. Documentation on these subjects includes various official documents, including identification papers, immigration documentation, and some correspondence. In addition, about half of the collection consists of photographs, including family snapshots and a photo album.

The Robert Rifkind Papers document the Jewish philanthropic and lobbying activities of Robert Singer Rifkind. Robert Rifkind was born in New York City in 1936 and became a partner at the law firm of Cravath, Swaine and Moore in 1971. He served on the boards of many Jewish philanthropic and activist organizations, including the American Jewish Committee, the Jewish Theological Seminary and the Schechter Institute for Jewish Studies. The collection includes correspondence, photographs and publications from Rifkind’s involvement in these and other organizations, primarily dating from the 1980s to the 2010s.