- Interstate commerce--Taxation--Law and legislation1
- Interstate commerce--United States1
- Johnston, Josiah Stoddard, 1784-1833--Correspondence1
- Kennedy, Robert F., 1925-19681
- Kennedy, Robert F., 1925-1968--Correspondence1
- Kerlan, Irvin, 1912-19631
- Kerlan, Irvin, 1912-1963--Correspondence1
- Kirk, Meldon C.1
- Kirk, Meldon C.--Correspondence1
- Krettek, Germaine--Correspondence1
- Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de, 1757-18341
- Lesser, Edith1
- Lesser, Edith--Correspondence1
- Libraries--New York1
- Libraries--Washington (D.C.)1
- Lorenz, John G.1
- Lorenz, John G.--Correspondence1
- Lynch, Mary Jo1
- Lynch, Mary Jo--Correspondence1
- Manning, Elizabeth P.--Correspondence1