- Johnson, Hugh S. (Hugh Samuel), 1882-1942.1
- Judaism--Social aspects--United States.1
- Kelly, Edward J. (Edward Joseph), 1876-1950.9
- Kendrick, W. Freeland, 1873-1953.1
- Kenesaw Mountain Landis (November 20, 1866 November 25, 1944)1
- La Guardia, Fiorello H. (Fiorello Henry), 1882-1947.1
- Labor unions--United States.1
- Labor--Illinois--Chicago.1
- Labor.1
- Lake Michigan.1
- Landis, Kenesaw Mountain, 1866-1944.2
- Lathes.1
- Law.1
- Lawyers.1
- Lincoln Park (Chicago, Ill.)2
- Lincoln Park Zoo--Description and travel.1
- Lincoln Park Zoo.2
- Lindbergh, Charles A. (Charles Augustus), 1902-1974.1
- Liquor laws.1
- Livestock--United States.1