Creator
- Keep, Henry B.1
- Kellerhoven1
- Kelly, Edward J. (Edward Joseph), 1876-19501
- Kennedy, R. M. Jr.1
- Kerr, W. E.1
- Kersey, Walter G.1
- King, Benjamin1
- Kittredge, Benjamin, 1900-19811
- Knox, Frank, 1874-19441
- Kretschmer1
- Kubinec, William R.1
- Kuebler1
- L. Mendel (Lucius Mendel), 1905-19701
- Lane, Richard I1
- Lathrom, Donald M.1
- Laurens, Henry, 1724-17921
- Lazarus, Benjamin D., 1800-18751
- Leatherwood, J. G.1
- Legendre, Landine1
- Legendre, Morris, 1902-19531