This record group contains materials related to the local units of Hadassah—groups, chapters, regions, and co-ops—as well as Junior Hadassah, a youth organization that functioned as a group within the Hadassah Chapter structure. The record group documents over one hundred years of Hadassah’s growth, and illuminates a century of American Jewish communal life, particularly that of Jewish women, across the United States. The record group reflects the formation, administration and activities of the individual groups, chapters, co-ops and regions, and contains information on local events and programs organized around fundraising, Zionism, Jewish heritage, religion and holidays celebration, the study of Hebrew and Yiddish, women's issues, fashion, health, technology and many other topics.

This record group includes documents created and maintained by the Office of the President, the Office of the Executive Director and the Chair of the Division Coordinators/Directors Committee. Prominent is the Henrietta Szold series, containing correspondence by and to Szold as well as printed materials written by and about her. The files in this record group were created by a national president or executive director, or for their use, or maintained in their office during their years in office. Included are correspondence, minutes, memos, publications, reports and subject files on topics with which these individuals were involved.

The Harry R. Rosen Community Building Consultants Records consist of photographs, research, and administrative documentation by and for the dozens of Jewish Community Centers (JCCs) in the United States, Canada, and Israel that Harry R. Rosen and his firm helped develop from the 1970s to the early 2000s.

Collection sontains the minutes of the Board of Directors (Trustees) meetings, 1972-1975; staff meetings, 1972-1973; background materials and reports pertaining to projects proposed and acted upon; annual reports; financial reports; and miscellaneous publications.

Contains material collected by the Jewish Media Service (JMS) on Jewish films, film company catalogs, resources and information from and about various media centers. The majority of the Jewish Media Service records date from when the JMS operated independently from 1975 to 1987. Types of material found in the collection include articles, brochures, catalogs, correspondence, examination study guides, filmographies, film stills, newsletters, pamphlets, photographs, posters, publications, scripts, and slides.

This collection mostly documents the professional career of Rabbi Joseph Perles, one of the first rabbis of the Conservative Judaism movement. As a rabbi, he strengthened and organized the Jewish community of Munich during his posting there from 1871-1894. The collection focuses on his religious writings, as well as his writings on Biblical archaeology, rabbinical philology, and folklore. A number of his sermons are included. There is a large body of correspondence from fellow rabbis and academic peers across Europe. Papers from the Jewish Theological Seminary in Breslau include a statute of the year 1854, a yearly report from 1875, and correspondence concerning nomination of directors for the seminary in 1875 and 1879.

Robert Raphael Geis (1906-1972) was a rabbi, educator, and Jewish theologian. He identified strongly with German liberal Judaism, but his keen interest in Jewish studies brought him close to leaders of conservative Judaism as well. Before the Second World War Robert Raphael Geis worked as a rabbi for the youth and Religion teacher in Munich and Mannheim, and as a rabbi in Kassel, Germany. After the war he served as a rabbi in Switzerland, the Netherlands, and Germany. In the early 1960s, Raphael Robert Geis became engaged in the dialog of Protestant and Jewish theologians. The Robert Raphael Geis collection consists mainly of correspondence and writings. There are only a few personal documents. The writings consist of newspaper articles, reviews of books on Jewish topics and sermons for major Jewish holidays. The correspondence has two main foci: the periods before and after the Second World War. The first period is characterized by letters written by various leading figures of Jewish communities in Germany and is concerned with employment opportunities for young rabbis, as well as insights into inner workings of congregations. A large amount of letters from this period also come from Robert Raphael Geis' students. The correspondence written after the war centers on theological matters and the workings of the Arbeitsgemeinschaft der "Juden und Christen" (Working Group of "Jews and Christians").

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.