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.

This collection contains Marvin Lowenthal's correspondence, journals, diaries, documents, photographs, memorabilia, and printed materials relating to his life, writings, Zionist activities, and relief work on behalf of German Jewry. Includes material on his youth, school work, and college years, as well as autobiographical writings and family correspondence containing information on Horace Kallen and early 20th century Zionist activities. Of particular note is his later correspondence with Jacob Billikopf, Jerome Frank, Horace M. Kallen, Elmer Rice, Eugene C. Taylor, and Stephen S. Wise.

This record group contains personal papers and special collections documenting individuals, both Hadassah members and non-Hadassah members, who were important to Hadassah. Much of the material forming the collections in this record group came from the administrative files of the national office of Hadassah, though some of the material was donated to Hadassah. Key individuals represented within this record group include Hadassah national board members Anna Tulin Elyachar, Bertha S. Schoolman, and Denise Tourover Ezekiel, as well as Jesse Zel Lurie who served as the first professional editor of Hadassah Magazine (originally Hadassah Newsletter) from 1947 to 1980.

This record group consists of printed materials and publications, produced by Hadassah projects and departments, Young Judaea, and other Zionist organizations from 1911-2011. Materials in the record group include periodicals, newsletters, greeting cards, certificates, invitations, brochures, pamphlets, catalogs, and other professionally produced printed materials. Besides Young Judaea, projects documented include Hadassah Magazine, the Hadassah Medical Organization, Youth Aliyah, the Jewish National Fund, and Hadassah Israel Education Services.