- Harvey, Dr.
- Harvey, Ross
- Harvey, Ruth Sawyer.
- Harvey, Samuel
- Harvey, Stephen J
- Harvey, Stephen J.
- Harvey, W G
- Harvey, W H
- Harvey, W. A. (William Alfred), 1914-1989
- Harvey, William H. (William Henry), 1811-1866
- Harvey, William R
- Harvey, William, 1578-1657
- Harvey, William, 1796-1866
- Harvey, Wm Henry
- Harvey-Brown, Yvette
- Harvey-Clark, Chris J
- Harvey-Gibson, R. J. (Robert John), 1860-1929
- Harvie‐brown, J A
- Harvie-Brown, J. A. (John Alexander), 1844-1916
- Harvier, P.
- Harvill, Alton McCaleb, Jr., 1916-2008
- Harvut, Hippolyte.
- Harward, Simon, active 1572-1614
- Harward-Nalder, Glenda
- Harwell Nursery.
- Harwin, R M
- Harwood, Adrian J.
- Harwood, Busick, 1745?-1814
- Harwood, C E
- Harwood, C M
- Harwood, Ellen A.
- Harwood, James D
- Harwood, John
- Harwood, John Harry.
- Harwood, Lois A.
- Harwood, P D
- Harwood, Paul D
- Harwood, R F
- Harwood, Robert F.
- Harwood, W. S. (William Sumner), 1857-1908
- Háry, Gyula, 1864-
- Haryoko, Tri
- Harz, C.
- Harz, Carl Otto 1842-1906
- Harz, Eva-Maria
- Harz, Kurt
- Harza, T
- Harzer, August, approximately 1784-1846
- Harzhauser, Mathias
- Harzhauser, Matthias
- Harzsch, S
- Hasan Adli, Durriyyah Sharifah
- Hasan Baqri, Syed Rafique
- Hasan, H A H
- Hasan, Haydar
- Hasan, K
- Hasan, S
- Hasan, Sabit
- Hasbenli, Abdullah
- Hasbrouck, E M
- Hasbrouck, Edwin M
- Hasbroucq, Séverine
- Haschemeyer, Audrey E V
- Haschick, Sharon L
- Hase, Hayo
- Hasebe, Mitsuyasu
- Hasebrock, K
- Hasebroek, K
- Hasegawa, Keika.
- Hasegawa, Kou
- Hasegawa, Masato
- Hasegawa, Mitsunobu, 18th cent-
- Hasegawa, Naohiro
- Hasegawa, Sanae
- Hasegawa, Takashi
- Hasegawa, Yoshihisa
- Hasegawa, Yoshikazu
- Haseke, Harald
- Hasel, A. A. (Austin Alexander), 1903-
- Haselbauer, Matthias A.
- Haselböck, Andreas
- Haseler, W H
- Haselhoff, E. (Emil), 1862-
- Haselhoff, Emil, 1862-
- Haseltine, Herbert, 1877-1962
- Haselton, Scott E.
- Haselwood, J. A.
- Haselwood, John Adam, 1867-
- Haseman, John D.
- Haseman, L
- Hasenack, H.
- Hasenack, Heinrich
- Hasenfratz, V
- Hasenfuss, I
- Hasenfuss, Ivar
- Hasenpusch, J
- Hasenpusch, J W
- Hasenpusch, Jack
- Hasenpusch, Jack W
- Hasenstab, M J
- Hasenstab-Lehman, Kristen
- Hasenstab-Lehman, Kristen E
- Hasey, W H
- Hasey, W. H.
- Haseyama, Kirstern L. F.
- Haseyama, Kirstern L.F.
- Haseyama, Kirstern Lica Follman
- Hash, C Tom
- Hash, Howard S.
- Hashemi, A
- Hashim, Rosli
- Hashimoto, Diogo
- Hashimoto, Diogo T.
- Hashimoto, Diogo Teruo
- Hashimoto, Goro
- Hashimoto, J
- Hashimoto, Jun
- Hashimoto, Kei
- Hashimoto, Koichiro
- Hashimoto, Paulo H
- Hashimoto, Yoshiaki
- Hashmi, Abu Saeed
- Hasibuan, R.
- Hasigerili, Hasigerili
- Hasin, Sasitorn
- Haska, Julia F.
- Haskel, Daniel, 1784-1848
- Haskell Avenue Floral Co.
- Haskell Implement & Seed Co.
- Haskell Implement & Seed Company.
- Haskell Implement and Seed Co.
- Haskell, Charles Cheves, 1880-
- Haskell, E. S. (Earl Stanley), 1886-
- Haskell, George, 1809-
- Haskell, George.
- Haskell, John Bachman.
- Haskell, Paul B.
- Haskell, Royal J. (Royal Joyslin), 1890-1958
- Haskell, Royal Joyslin, 1890-
- Haskell, Shawn P.
- Haskett, T. H. (Thomas Henry), 1873-
- Haskin, Edna F
- Haskin, Harold H
- Haskins, Arthur LaRue.
- Haskins, C P
- Haskins, C. P.
- Haskins, Caryl P
- Haskins, Caryl Parker
- Haskins, Clark C.
- Haskins, David Greene, 1845-1926
- Haskins, Donald M.
- Haskins, Edna F
- Haskins, Kristin E.
- Haskins, Mary F
- Haskins, Melanie L
- Háskóli Íslands.
- Haslam, George.
- Haslberger, Alfred
- Haslemere Museum.
- Hasler, Arthur D
- Haslett, J R
- Haslewood, Joseph, 1769-1833
- Haslinger, Hans
- Hasluck, Paul N. (Paul Nooncree), 1854-1931
- Hass, A.
- Hass, Adriani
- Hass, C G
- Hass, Iris
- Hassall, Albert
- Hassall, Albert, 1862-1942
- Hassall, Arthur Hili
- Hassall, Arthur Hill
- Hassall, Arthur Hill, 1817-1894
- Hassall, Mark
- Hassan, Anuar
- Hassan, E F O
- Hassan, H A H
- Hassan, Habib-Ul-
- Hassan, Hoda
- Hassan, I
- Hassan, M
- Hassan, Mahmoud Omar
- Hassan, S K M
- Hassan, Soaib Ali
- Hassani, Sami
- Hassapakis, Craig
- Hassapakis, Craig L
- Hassard, Annie.
- Hasse C. (Carl), 1841-1922
- Hasse, Eberhard
- Hasse, H. E. (Hermann Edward), 1836-1915
- Hasse, R L
- Hässel De Menéndez, G G
- Hassel, Lynne
- Hasselblad, K W
- Hasselbring, Heinrich, 1875-1932
- Hasselgren, Nicolas
- Hasselkus, Edward
- Hassell, C J
- Hassell, C W
- Hassell, Marion D.
- Hasselman, Dan J.
- Hasselman, James B.
- Hasselquist, D
- Hasselquist, Eliza M.
- Hasselquist, Fredrik, 1722-1752
- Hasselquist, Friedrich, 1722-1752
- Hasselt, A. L. van, 1848-1909
- Hasselt, A. W. M. van (Alexander Willem Michiel), 1814-1902
- Hasselt, Johan Coenraad van, 1797-1823
- Hassemer, Gustavo
- Hassemer, Jerry R.
- Hassemer, M Matthew
- Hassert, Kurt, 1868-1947
- Hassett, Charles C
- Hassinger, Heinrich, 1872-
- Hassinger, J D
- Hassinger, Jerry D
- Hassinger, Jerry D.
- Hassiotis, M
- Hasskarl, Iusto Carolo
- Hasskarl, J. K. (Justus Karl), 1811-1894
- Hassler, Bobby Vernon.
- Hassler, E
- Hassler, Emile, 1861-1937
- Hässler, Friedrich.
- Hassler, Sylvia Sue
- Hassler, Thomas J
- Hassler, William G.
- Hassler, William W.
- Hassloch, Augustus C.
- Hasson, Esteban
- Hasson, Michel
- Hassunuma, RM.
- Hassur, R L
- Hast, Barthold Rudolph, 1724-1784
- Hast, Herman Rudolph.
- Hast, Malcolm H
- Haste, Richard A.,
- Hasted, Edward 1732-1812
- Hastenreiter dos Santos, Conrado
- Hastie, W. 1842-1903
- Hastings Museum and Art Gallery.
- Hastings, A B
- Hastings, Anna B
- Hastings, Charles, Sir, 1794-1866
- Hastings, Daniel O.
- Hastings, E. G. 1872-
- Hastings, Edwin George, 1872-
- Hastings, Edwin George, 1873-