The collection contains background materials pertaining to the formation of the Conference, the election of delegates, financial records, memoranda, reports, and incomplete minutes of the Conference and its committees. It also includes extensive correspondence of the Administrative Secretary Jesse B. Calmenson, for March-December, 1943. The major portion of the collection consists of transcripts of the first through fourth sessions (1943-1947) of the Plenum and committees of the Conference. The published material in the collection includes the Bulletin of the activities and Digest of the press.

The records of the American Jewish Historical Society, the oldest national ethnic historical organization in the United States, include correspondence of officers and staff as well as inter-office memos, multiple versions of the constitution and by-laws of the society, meeting minutes of administrative branches and committees, membership and financial records, reports, exhibit materials, records relating to the society’s library and archival holdings, press releases and newspaper clippings, and publications and newsletters created by the society. There are also materials from various programs, such as meetings and conferences, tours, lectures, awards and dinners, films, and educational programs.

The Annual and Mid-Winter National Conventions Records document the proceedings and outcomes of the conventions and conferences attended by Hadassah’s National Board as well as by convention delegates from the various regions of Hadassah. The conventions in particular are where local and regional leaders meet with each other and the National Board and learn about Hadassah’s various projects and committees. This record group also includes annual reports from 1926-2001.

Hadassah Functions and Operations Records represent the bulk of aid and services provided to Hadassah's membership, from the 1920s to 2011. Materials found in the record group include correspondence, clippings, press releases, manuals and kits for chapters and members to implement programming and chapter structure, fundraising campaigns, scripts, study guides, programming for local and national meetings, biographical files, and training documentation. Departments documented in the record group include Public Affairs, Education, Women's Health, American Affairs, Zionist and International Affairs, Speakers Bureau, Fundraising, Program, Organization, Outreach and Tourism Departments. Materials related to the general administration of Hadassah are also in the record group; these materials include research and development of projects, archives department correspondence and other materials, Hadassah House administration, and strategic planning. The record group also documents Hadassah's efforts to expand membership outside of the United States, by the development of Hadassah International.

The records of the People's Relief Committee for Jewish War Sufferers consist of correspondence with Jewish communities and relief organizations in Europe, Palestine, Cuba, South America, the United States, and Canada; as well as scrapbooks containing U.S. and Canadian Yiddish and English newspaper clippings and printed promotional literature pertaining to the fundraising activities of the People's Relief Committee in North America and abroad.

The Hadassah Medical Organization Records in the Hadassah Archives document Hadassah's work in providing health care resources in Palestine/Israel since 1918. The activities documented revolve around the development of the Hadassah Hospital; health centers; dental centers; occupational and rehabilitative services; medical, nursing, dental, and pharmacy schools; as well as numerous educative and preventive projects, especially those aimed at infant care. The documents also reflect the history of the Yishuv (Jewish settlement in Palestine) and the establishment of the State of Israel. The record group contains articles, clippings, correspondence, financial records, fundraising material, minutes, personal accounts, press releases, publicity material, reports, and statistical reports.

The records document the Histadruth Ivrit's early history to the present, representing a significant portion of its work in spreading the Hebrew language in the United States in the second half of the twentieth-century. The records include substantial amount of material regarding the organization's history, administration, public events, publications, and reports. Some information of the early history of the Histadruth Ivrit could be found in the records kept by the writer Daniel Persky. Persky collected personal and professional records that include correspondence with friends, readers, and writers; a partial collection of the drafts of his own publications, and a collection of photographs and newspaper clippings. The functions and activities of the Histadruth Ivrit are documented through Board of Trustees and Board meetings agendas and minutes; various programs for events, conventions, conferences, and celebrations; documents related to fundraising; public relations, press releases and brochures; correspondence with different individuals, organizations, and foundations; Histadruth Ivrit's publications among them the newspaper Hadoar and Tov Lichtov; a large collection of photographs, and scrapbooks. The records of the Histadruth Ivrit represent the large majority of the organization's activities dating from the 1980s to the present. Records for the earlier years of activities are fragmented and incomplete. The records related to the life of Daniel Persky are also partial and copies of many of his publications are missing. This collection included brochures, correspondence, financial records, flyers, grant applications, invitations, lists, minutes, news clipping, orders, periodicals, photographs, press releases, reports, and scrapbooks.

Jacques Judah Lyons, hazzan, rabbi and community leader, was born in Surinam and emigrated to Philadelphia in the early 1800s. Minister of the New York Congregation Shearith Israel for 38 years, he gathered extensive materials on early Jewish history in the United States, Canada and the West Indies. His papers include manuscripts, newspaper clippings, scrapbooks, notebooks, photographs, and a Sansom ship's log book. Contains material relating to Jews in North and South America generally and more specifically to Congregation Shearith Israel and the Jews in New York, the Touro Synagogue and cemetery and the Jews in Newport, Rhode Island, Philadelphia and the West Indies. Also contains material relating to Jews in the wars of the United States, correspondence of the Jews with George Washington and items relating to Haym Salomon. Collection consists of manuscript material and five notebooks and three scrapbooks of Lyons. Contains material not listed in calendar consisting of sermons by Lyons, a manuscript prayer book used in Surinam and a guide for religious ceremonies at Congregation Shearith Israel, as well as letters written during the Civil War period and correspondence relating to the personal life and career of Lyons.

The collection documents the National Jewish Welfare Board's (JWB) evolution from an organization founded in 1917 to provide support for soldiers in times of war to an agency involved in all aspects of Jewish life both in the United States and abroad. In 1990 JWB recreated itself as the Jewish Community Centers Association of North America.

Collection includes approximately 85,000 individual service files and 320,000 surrogate index cards collected by the BWR and the Greater New York War Records Committee on behalf of Jewish soldiers and sailors who served in World War II. The BWR also conducted surveys of Jewish doctors, dentists, farmers and refugees who served in the United States Armed Forces and compiled population studies for cities containing Jewish populations greater than 25,000, among them Trenton, N.J. and New York City. The individual service files typically provide a soldier's name, age, rank, serial number, service branch, home address, civilian occupation, next of kin, awards and casualties. These files contain supporting documentation culled from newspapers, telephone conversations, and correspondence exchanged among BWR staff and volunteers, service personnel and their families, and representatives of the United States Armed Forces.

The alphabetical master cards series serves as an abbreviated, annotated index for the more substantial individual service files of Jewish service personnel who won awards or suffered casualties during the war. The Bureau maintained correspondence files for permanent staff members including Salo Baron, Edward Burnstein, Louis Dublin, Elisha Friedman, Dr. Maurice Hexter, Rabbi Edward Israel, Samuel Kohs, Louis Kraft, Samuel Leff, Harry Lurie, Herbert Marks, Benjamin Rabinowitz, Philip Schiff, Selma Schnaper, Jerome Seidman, David Turtletaub, Frank Weil, Milton Weill, Arthur Weyne, and Joseph Zubin.

The Bureau also preserved correspondence with representatives of local war records committees, religious, and community service organizations including the United Service Organization, Jewish Community Centers, Hebrew Associations, and the National Refugee Service, as well as publishers, alumni associations, and military personnel from the offices of United States Army, Navy, and Quartermaster General's office.

It retained copies of published and printed materials including studies, lists, guides, forms, and cards. Among the vital records are charts depicting the BWR administrative hierarchy; personnel and staff records; lists of volunteers and field representatives employed throughout the United States; minutes of meetings; annual, quarterly, and special reports; budget materials; and policies and procedures implemented during the war records program.

This Collection contains personal papers, correspondence, and other material relating to the Phillips family, 1733-1954. The majority of the materials are in regard to the following family members: Jonas Phillips (1733-1802), Naphtali Phillips (1815-1868), Joseph Phillips (1811), Rebecca Hart Phillips (1812), Joshua Phillips (1852-1858), Isaac Phillips (1830-1884), Roslie Solomons Phillips (1872-1945), Naphtali Taylor Phillips (1895-1954).

Notable objects in this collection include Jonas Phillips' copy of a book on the laws and practice of shehita, printed in Wandsbeck, Germany, in 1733; Naphtali Phillips' letters regarding Congregation Shearith Israel; Isaac Phillips' correspondence relating to his position as Appraiser of Merchandise for the Port of New York; Roslie Solomons Phillips' letters from Eleanor Roosevelt; and Naphtali Taylor Phillips' correspondence relating to Congregation Shearith Israel, the Touro Synagogue, the Federation of American Zionists, the National Conference of Jewish Charities (Committee on Palestinian Charities), and Adolphus S. Solomons. Collection also contains published Masonic materials, political memorabilia, and a letter from George Mifflin Dallas to an unidentified member of the Phillips family, 1856.

The records chronicle the ideology behind the Reconstructionist movement, the founding and activities of the Jewish Reconstructionist Foundation, and its growth and transformation from an ideology and movement into an established American Jewish denomination, Reconstructionist Judaism. The records also document two seminal figures in Reconstructionist Judaism, Mordecai Menahem Kaplan and Ira Eisenstein. Included in the collection are the administrative records of the Foundation (minutes, financial records, bylaws), publications produced by the Foundation including manuscript submissions for the influential publication The Reconstructionist, correspondence, sermons, prayer books produced by the Foundation, syllabi, sheet music, photographs, and speeches, among other material. In the correspondence are letters from Martin Buber, J. Edgar Hoover, and Albert Schweitzer.

The Phi Epsilon Pi fraternity, active between 1904 and 1970 with a predominantly Jewish membership, was established in New York City and eventually opened at least 48 chapters on college campuses across the U.S. and one in Canada. The bulk of the records in this collection were generated, received and collected by the national fraternity officers between 1912 and the late 1950s. Topics represented include black-Jewish relations, military service in WWI and WWII, educational, housing and occupational discrimination, and WWII refugee aid. Materials consist of correspondence, reports, minutes, clippings, serial publications, photographs, pins, financial records, floor plans, manuals, and directories.

The Robison Family Fapers reflect various activities of Adolf C. and Ann Green Robison in civic organizations, Jewish communal life, Jewish national and international affairs, and individually in the arts. The collection contains information on the origins of the United Nations; and on aid to Israel before, during, and after the War of Independence. The materials include correspondence, memoranda, minutes, reports, financial documents, newspaper clippings, photographs, diaries, scrapbooks, musical scores, and play scripts.

The children and descendants of Isaac Mendes and Rachel Levy Seixas included individuals who had a great impact on communal affairs and colonial Jewish life in New York, Philadelphia, Newport, and Richmond. Though this collection does not preserve the total volume of papers produced by every family member, the documents contained herein demonstrate the importance of the family in both Jewish and secular life in late 17th and early 18th century North America.

The collection is valuable to researchers studying the Seixas family; civic, mercantile, and religious contributions of Jews in the colonial era; Jewish communities in New York, Philadelphia, Newport, and Richmond; the importance of religion to Colonial Jews; Jewish participation in the Revolutionary War, the War of 1812, and World War I; Jewish converts to Christianity; Jews as masons; and Congregation Shearith Israel of New York.

Prominent individuals in this collection include: Ephraim Hart, Grace Seixas Judah, Mrs. Jesse Judah, Israel Baer Kursheedt, Sarah Seixas Kursheedt, Hayman Levy, Nicholas Low, Isaac Moses, Naphtali Taylor Phillips, Benjamin Mendes Seixas, David G. Seixas, Gershom Mendes Seixas, Isaac Benjamin Seixas, Isaac M. Seixas, Jacob B. Seixas, Joshua Seixas, and Moses Mendes Seixas.

The collection includes: account records, books, circumcision instructions and register, correspondence, drawings, estate papers, a eulogy, family trees, legal documents, petitions, photographs, prayer books, a sermon, and shipping records.

This collection is arranged into four series: Series I: Family Papers; Series II: Moses Seixas (1744-1809); Series III: Gershom Mendes Seixas (1746-1816) and descendants; and Series IV: Benjamin Mendes Seixas (1748-1817) and descendants.

Collection documents the activities and missions of the Union of Orthodox Jewish Congregations of America (UOJCA), primarily during the presidencies of William Weiss (1933-1942), Samuel Nirenstein (1942-1948), Moses Feuerstein (1954-1965), and Rabbi Pinchas Stolper’s tenure as Executive Vice President (1976-1994).

Founded in 1898, the UOJCA, also known as the Orthodox Union, serves as the leader, organizer, and voice of affiliated Orthodox Jewish congregations in North America. Divisions of the UOJCA reflected most prominently in the collection include the National Conference of Synagogue Youth, the Women’s Branch, the Kashruth Division, the Department of Synagogue Services, the Israel Center, as well as regional branches.

Subjects addressed in the collection include Sabbath and high holiday observance, dietary laws, Baal Teshuva, slaughterhouse legislation, funeral standards, education, and synagogue management and outreach. Materials include correspondence, minutes, clippings, speeches, UOJCA publications, financial documents, and a few photographs.

Young Judaea is the oldest Zionist youth organization in the United States, established as a national organization in 1909 by the Federation of American Zionists. It was supported by Hadassah, including direct financial sponsorship from 1967-2011. The major aims of Young Judaea throughout its history have been to advance the cause of Zionism, to further the mental, moral, and physical development of Jewish youth, and to promote Jewish culture and ideals in accordance with Jewish traditions. Young Judaea has remained non-partisan and non-denominational, embracing and recruiting Jewish youth from all backgrounds.

The Youth Aliyah Records in the Hadassah Archives document Hadassah's work with multiple international organizations to rescue Jewish children from continental Europe to Palestine from 1933-1945. The collection also documents Hadassah's involvement with Youth Aliyah since 1946 in providing residential, educational, vocational, rehabilitative and therapeutic care for displaced and at-risk youth from around the world.