Authors: Henry
- Knight, W. H. (William Henry) -
- Koebel, W. H. (William Henry) 1872-1923
- Koerner, W. H. D. (William Henry Dethlef) 1878-1938
- Koopmans van Boekeren, H. E. (Henri Emile) 1870-1939
- Koster, Henry 1793-
- Kraemer, Henry 1868-1924
- Krehbiel, Henry Edward 1854-1923
- Krutzsch, Philip H. (Philip Henry) 1919-
- Kuttner, Henry 1915-1958
- Kuyper, H. S. S. 1870-1933
- La Blanchère, Henri de 1821-1880
- Labouchere, Henry Du Pré 1831-1912
- Lachambre, Henri 1846-1904
- La Chaume, Henri de 1861-
- La Fontaine, Henri 1854-1943
- Lagus, F. H. B. (Frithiof Henrik Bernhard) 1855-1936
- Lahee, Henry Charles 1856-1953
- Lambert, D. H. (Daniel Henry) 1852-1930
- Lambert, Henry Clifton -
- Landor, Arnold Henry Savage 1865-1924
- Landseer, Edwin Henry, Sir 1802-1873
- Lane, Charles Henry -
- Lane, Henry Higgins 1878-1965
- Langford, Frank Henry 1882-1941
- Lanier, Henry Wysham 1873-
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