The collection is arranged into the following series and subseries:

Series 1: Cooperatives Subseries 1.1: Cooperatives in the U.S.A Subseries 1.2: Labor Legislation Subseries 1.3: International Cooperative Association, I.C.A. Subseries 1.4: Unemployment Conference Subseries 1.5: Cooperative League of the United States of America (CLUSA) Subseries 1.6: The Cooperative Foundation Subseries 1.7: Consumer Movement Subseries 1.8: Illinois Federation of Consumers Subseries 1.9: Cooperatives Subseries 1.10: Materials Concerning Cooperatives Both in the U.S.A. and Abroad Subseries 1.11: California Commission of Aging; Cooperative housing Subseries 1.12: Cooperative Housing; Paul Bullock; Italian commendation Subseries 1.13: Coop Housing Directory; Coop Foundation; Coop League Subseries 1.14: Cooperative; Oil Independence; Peace and Disarmament Subseries 1.15: Boys Club; Cooperative; Bound letters Subseries 1.16: Cooperatives Subseries 1.17: California Commission of Aging; Cooperative housing Series 2: Correspondence Subseries 2.1: Personal Correspondence Subseries 2.2: General Correspondence Subseries 2.3: Correspondence with Politicians Subseries 2.4: Correspondence; Service Organization; Awards and Degrees; Cooperatives Subseries 2.5: Correspondence Subseries 2.6: Speeches; Congressional Correspondence Subseries 2.7: Dad's Letters Subseries 2.8: Correspondence with U.S. Presidents; Tax Reform; Employment of Inner City Youth Subseries 2.9: Correspondence; Articles on Miscellaneous Topics Subseries 2.10: Correspondence; Group Health Association of America Subseries 2.11: Correspondence with Emily McCormick, 1969 - 1977 Series 3: Economics Subseries 3.1: Cartels and Monopolies Subseries 3.2: War on Poverty Subseries 3.3: The United States Monetary System Series 4: Miscellaneous Suberies 4.1: Latin America Cooperatives Suberies 4.2: Atomic Bomb and Energy Suberies 4.3: Agriculture Suberies 4.4: Flood Control Suberies 4.5: Public Power Suberies 4.6: Miscellany Suberies 4.7: National Council of Churches Suberies 4.8: National Association of Housing Cooperatives Suberies 4.9: Voorhis' Activities in Retirement Suberies 4.10: The Functioning of the U.S. Congress Suberies 4.11: Various Topics Suberies 4.12: Oil Papers Suberies 4.13: Pacific Homes and Claremont Manor Suberies 4.14: Higher Education in California Suberies 4.15: All About India Suberies 4.16: Voorhis Awards Suberies 4.17: Miscellaneous Series 5: Newspaper Clippings Subersies 5.1: Newspaper clippings, 1937 - February 1940 Series 6: Oral History Subseries 6.1: Claremont Graduate School Oral History interview; autobiography Series 7: Photographs Subseries 7.1: Photographs Subseries 7.2: Oversized items -- Awards and Diplomas, Photographs Series 8: Politics Subseries 8.1: Dies Committee Subseries 8.2: Dies Committee Government Documents Subseries 8.3: Congressional Records Subseries 8.4: Veterans Affairs Subseries 8.5: Political, religious, and Congressional Materials Subseries 8.6: Campaign Records, Materials, and Results (except 1946) Subseries 8.7: Peace Movement Subseries 8.8: Military problems Subseries 8.9: Townsend Plan and Social Security Subseries 8.10: Political Activities and Correspondence Subseries 8.11: 1946 Campaign Materials: Voorhis vs. Nixon Subseries 8.12: Epic Campaign; Epic News; Italian commendation Subseries 8.13: Political Papers; Congressional Joint Economic Committee; Cooperative League USA Subseries 8.14: Political Campaign and activities; family and school Subseries 8.15: Yale; Politics; Early Congressional Years Series 9: Publications Subseries 9.1: The People's Business; and radio and other speeches Subseries 9.2: Material for Voorhis' Books: Confessions of a Congressman,American Cooperatives, and Cooperative Enterprise Subseries 9.3: Materials for The Book the Strange Case of Richard Milhous Nixon Subseries 9.4: Memorial Societies Movement Subseries 9.5: Voorhis' Letters, Speeches and Testimony before Congressional Committees Subseries 9.6: U.S. history course, "Development of Social Classes in the U.S., taught by Jerry Voorhis at Pomona College Subseries 9.7: Speeches, Articles and Other Material by Jerry Voorhis Subseries 9.8: Materials for Voorhis's book: Out of Debt, Out of Danger Subseries 9.9: Manuscript: The Strange Case of Richard Milhous Nixon Subseries 9.10: Speeches, Articles, Debates, and Correspondence; Democratic Clubs Subseries 9.11: Writings; Essays; Book Reviews Subseries 9.12: World Peace Biographies Subseries 9.13: Publishing Correspondence Subseries 9.14: Miscellaneous Writings, Pamphlets and Speeches Subseries 9.15: Correspondence; Articles and Other Writings Subseries 9.16: Letters and articles; Book Reviews Subseries 9.17: Political Speeches and Writings Subseries 9.18: Genealogy; "A Soldier's Journal" (Civil War Diary) by A.L. Voorhis Subseries 9.19: Miscellaneous Voorhis Publications Subseries 9.20: Obituaries and Memorial Items, Biographical Materials Series 10: Voorhis School for Boys, 1827 - 1938 Subseries 10.1: Voorhis School for Boys; General Correspondence Subseries 10.2: Voorhis School for Boys Subseries 10.3: Cal Poly Pomona; Voorhis School for Boys