Creator
- Keuffel & Esser Co.1
- King Features Syndicate1
- Kirchhoff, G. (Gustav), 1824-18871
- Kneipp, Sebastian, 1821-18972
- Knighton-Hammond, Arthur Henry, 1875-19701
- Koechig, Irene1
- Koesel, J.1
- Koesel, Joseph1
- Kurr, J. G. (Johann Gottlob), 1798-18701
- L. Prang & Co.1
- Lambert, Robert A.1
- Lambertin, Henri1
- Lansdon, H. I.1
- Larson, Axel1
- Lauber, Eduard1
- Laurie, A. P. (Arthur Pillans), 1861-19491
- Lavine, Irvin, 1902-1
- Lawless, Dorothy, 1906-19811
- Lea & Febiger2
- Lea, M. Carey (Mathew Carey), 1823-18971