- Kondziella, F1
- Koochiching County Abstract Co1
- Krenz, Kelly A.1
- Kroll Map Company, inc1
- Kroll Map Company, inc.1
- Kuhns, Mary Jo P.1
- Kungliga Automobil klubben (Sweden)1
- Kümmel, Carl August1
- L'Isle, Joseph Nicolas de, 1688-17681
- L. Guilmin1
- L.H. Everts & Co1
- L.T. Felland & Co.1
- La Pérouse, Jean-Franc?ois de Galaup, comte de, 1741-17881
- La Pérouse, Jean-François de Galaup, comte de, 1741-17881
- Lancefield, Alfred1
- Landslaget for reiselivet i Norge1
- Langdon, James G.1
- Langren, Henricus F. ab (Henricus Florentius), approximately 1574-16481
- Lapham, Increase Allen, 1811-18751
- Lapie, M. (Pierre), 1779-18501