Creator
- King-Joyner Family1
- Kirby, David, 1944-1
- Knight and Wall Hardware Company (Tampa, Fla.)1
- Koperski, Sara Jane1
- Krauss, Michael E. (1934-2019)1
- L'Unione Italiana (Tampa, Fla.)1
- Ladies Library Association1
- Laffitte, Rondeau Boyd.1
- Lamarque Sarno, Martha1
- Lampe, J. B. (Jens Bodewalt), 1869-19291
- Larson, Elin Ingeborg1
- Larson, Olga1
- Lassman, Valerie1
- Lawson, Steven F. (1945-)1
- Leigh family1
- Leigh, Richard H. (Richard Henry)1
- Lesley Family1
- Lewis, W.1
- Liddell, Anna Forbes1
- Lopez-Portillo y Lancaster-Jones, Rodrigo1