Creator
- Knights of Pythias. Supreme Lodge.1
- Knopf, Hans J.2
- Knopf, Hans, Pix.1
- Knopf, Hans.7
- Knopf, Irwin J.1
- Kobert Color Publishers (Doniphan, Mo.)1
- Kobert, Bill.2
- Kodak Shop.1
- Kodatone.2
- Koehne.1
- Koellein, Giers.1
- Koester, Herbert1
- Kohara Photographic Studio7
- Kolasinski Studio (Chester, Pa.)2
- Kolb, Kathryn9
- Kominsky, Morris1
- Kondo Studio.1
- Kooistra, Al.1
- Koppel Color Cards (Hawthorne, N.J.)1
- Korkscrew, Kornelius (pseudonym)1