Creator
- Judd & Detweiler1
- Julius Springer (Firm)1
- Karr, Walter G. (Walter Gerald), 1892-19461
- Kassabian, Mihran Krikor, 1870-19101
- Kebler, Lyman F. (Lyman Frederic), 1863-1
- Kekulé, August, 1829-18961
- Kentucky Alcohol Corporation1
- Keuffel & Esser Co.1
- King Features Syndicate1
- Kirchhoff, G. (Gustav), 1824-18871
- 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