- Jenischewsky, Kurt, photographer1
- Jenner, Edward, 1749-1823, author1
- Jennings, Hazel L., author1
- Jensen, Hans F., 1896-1959, author2
- Jesus Junior, Clinio Antonio Zacharias de, author1
- Jewish Welfare Board, author.1
- Jiménez Núñez, Ricardo, 1879-1946, author1
- John Crerar Library, compiler.1
- John H. Woodbury Dermatological Institute, author.1
- John Wyeth & Brother, author.2
- Johns Hopkins Hospital. School of Nursing, author.1
- Johnson, C. Lawson (Charles Lawson), 1886- author1
- Johnson, John B., Jr., author3
- Johnson, Julian, Major1
- Johnson, O. A. (Ora Alexander), 1872- author1
- Johnson, Richard Otto, author1
- Joint Army-Navy-OSRD Conference on Psychological Problems in Military Training (1945 : Washington, D.C.), author.1
- Joint Committee on Health Problems in Education.1
- Joint Committee on Methods of Preventing Delinquency, author.1
- Jones, Georg.1