| Yp10 | Bernice Pauahi Bishop Museum, Honolulu | |
| Yp11 | American Oriental Society | |
| Yp12 | Berkeley Divinity School | |
| Yp13 | Brick Row Book Shop | |
| Yp14 | Betsy Ross Nursery School | |
| Yp15 | Connecticut Academy of Arts and Sciences | |
| Yp16 | Forest History Society | |
| Yp17 | Expeditions (A-Z) | |
| D9 | Dura-Europos | |
| E5 | Egypt | |
| F5 | Fishing the Pacific | |
| G3 | Gerasa (Jordan) | |
| I3 | Yale North India Expedition | |
| I4 | Yale-Cambridge India expedition | |
| N8 | Yale Prehistoric Expedition to Nubia | |
| P1 | Joint Yale-British School Expeditions to Jerash | |
| P4 | Peru | |
| Yp18 | Travel trips arranged for Yale students | |
| Yp19 | Faculty Club | |
| Yp21 | Other clubs (A-Z;); but see Yeg7.E3 for the Elizabethan Club | |
| As78 | Associates in the Science of Society at Yale (William Graham Sumner Club) | |
| B53 | Antiquarian book dealers in Connecticut | |
| C67 | Colby Club | |
| D3 | Deer Island Club Corporation | |
| F7 | Yale Film Society | |
| F77 | Forty-Two Club | |
| G31 | German Book Club | |
| G7 | Graduate Club Association | |
| J9 | Judas discussion group | |
| M46 | Mediaevalists | |
| Or4 | Oriental Club of New Haven | |
| So13 | Social Science Club | |
| St9 | Stuart Supper Club | |
| W6 | Yale Workers' Club of the U.S. Communist Party | |
| Y16 | Yale Choral Society | |
| Y2 | Yale Dames | |
| Y4 | Yale Staff News | |
| Y5 | Faculty Wives Guild | |
| Y6 | Yale University Women's Organization | |
| Yp23 | John B. Pierce Foundation | |
| Yp24 | Mac Users' Group | |
| Yp25 | Mory’s Association (including Moriartys) | |
| Yp26 | Seven Springs Center | |
| Yp27 | Yale Graduate Placement Bureau, Inc. (New York) | |
| Yp29 | Yale Co-Operative Corporation | |
| Yp30 | Yale Savings League | |
| Yp31 | Whitlock’s, inc. | |
| Yp32 | Saint Thomas More House & Chapel | |
| Yp37 | Yale-in-China Association | |
| Yp41 | Seneca County Church Music Association | |
| Yp43 | Yale-Reid Hall Summer seasons in Paris | |
| Yp46 | Yale Summer High School | |
| Yp51 | Meetings of learned societies at Yale (A-Z) | |
| Ag8 | Agricultural Convention New Haven | |
| Al8 | American Alumni Council | |
| Am62 | American Society of Mechanical Engineers. New Haven Section | |
| Am7 | Conference on "America's Human Resources to Meet the Scientific Challenge" | |
| An8 | Antiquarian & Landmarks Society, Inc. of Connecticut | |
| Ar2 | Archaeological Institute of America | |
| As8 | American Astronomical Society | |
| Au8 | American Automobile Association | |
| C17 | Advertising Council | |
| C18 | Yale Conference in Careers in Government | |
| C33 | International Society for Cell Biology | |
| C35 | Challenge | |
| C42 | American Chemical Society. New Haven Section | |
| C43 | American Child Hygiene Association | |
| C49 | Connecticut Society of Civil Engineers | |
| C68 | College Art Association of America | |
| C69 | Association of Colleges in New England | |
| C76 | Connecticut Teachers College Summer Session | |
| D99 | Summer Institute in Dynamical Astronomy | |
| Ea7 | Eastern Public Speaking Conference | |
| Ec7 | Graduate training in economics | |
| En29 | American Society for Engineering Education | |
| En3 | Yale Conference on the Teaching of English | |
| Es66 | Col·loqui d'Estudis Catalans a Nord-Amèrica | |
| F68 | American Board of Commissioners for Foreign Missions | |
| F7 | Connecticut Forest and Park Association | |
| F8 | Yale-Barnard Conference on the Teaching of French | |
| F9 | Conference for Fulbright Scholars | |
| G29 | Geological Society of America | |
| H62 | American Historical Association | |
| In5 | Conference on Industrial Electrical Heat Treating | |
| In8 | Yale Conference on International Relations | |
| In82 | Connecticut Council on International Relations | |
| L49 | Lecture-Seminar-Conference on the Education of the American Negro and the African Native | |
| L52 | Conference on Legal Problems of International Financing | |
| L64 | Linguistic Society of America | |
| M43 | American Mathematical Society | |
| M47 | American Academy of Medicine | |
| M7 | Modern Language Association | |
| M72 | New England Modern Language Association | |
| M85 | Motor Vehicle Traffic Conference | |
| M9 | International Federation of Music Students | |
| M91 | International Musicological Society | |
| N22 |
National Academy of Sciences (U.S.)
|
|
| N24 | American Society of Naturalists | |
| P19 | Pan-American Scientific Congress | |
| P54 | American Philological Association | |
| P69 | Conference on Advanced Placement in History | |
| P95 | American Psychological Association | |
| P96 | Public Affairs Conference | |
| Se5 | General Semantics Seminar and Colloquium | |
| Sh9 | Harry Shulman Conference | |
| So13 | Yale Conference on the Teaching of Social Studies | |
| Un3 | American Association of University Professors | |
| Y13 | Yale-Life Conference on House Building Technics | |
| Yp61 |
American Studies at Yale University for Foreign Students |
|
| Yp62 | Yale Foreign Student Institute | |
| Yp63 | Yale-New Haven Teachers Institute | |
| Yp64 | Yale Afro-American Cultural Center | |
| Yp70 | Walter Camp Football Foundation | |
| Yp80 | Schell Center for International Human Rights | |
| Yp91 | Books marked “Yale edition” | |
| Yr | Miscellaneous Yale memorabilia to be kept intact (e.g. Hamil gift) | |