- Honey, M R
- Honey, Martin
- Honey, Martin R
- Honeycutt, Rodney L.
- Honeyman, David, 1817-1889
- Honeywell, Hannah Elizabeth, 1888-
- Honeywood Nursery.
- Honfi, Ana I
- Honfi, Ana I.
- Honfi, Ana Isabel
- Hong, C X
- Hong, Chuanxue
- Hong, Chun-dan
- Hong, C-W
- Hong, Dao Thi
- Hong, Deng
- Hong, De-Yuan
- Hong, Deyuan.
- Hong, Fei
- Hong, Gi-Man
- Hong, J S
- Hong, Jianfeng
- Hong, Joo-Hyun
- Hong, K. M
- Hong, Ni
- Hong, Qin
- Hong, S Y
- Hong, Seung Cheon
- Hong, Seung-Beom
- Hong, Shiao-Yu
- Hong, Soon-Sang
- Hong, S-P
- Hong, Suk-Pyo
- Hong, Sun Hee
- Hong, Sung Yun
- Hong, Sungwon
- Hong, Terri-Lynn W P
- Hong, Terryi-Lynn W P
- Hong, Won S.
- Hong, Won Shic
- Hong, X
- Hong, Xiao-Yue
- Hong, Xin
- Hong, Y
- Hong, Yanhua
- Hong, Yong
- Hong, Young S.
- Hong, Yu
- Hong, Zijia
- Hongco, Aldrin L
- Hongfeng, Yao
- Hongjamrassilp, Watcharapong
- Hongnark, Sermsakdi
- Hongo, T
- Hongoh, Yuichi
- Hongsanan, Sinang
- Hongxin, Zhou
- Honhart, David Crosby.
- Hönig, Lydia
- Honigberger, John Martin, 1795-1869
- Honigmann, H L
- Honigmann, Hans
- Honigstein, Avraham
- Honj, Renato M.
- Honji, Renato M.
- Honkala, Barbara H.
- Honkoop, Abraham (II, Leiden)
- Honkoop, Jan (Leiden)
- Honma, Y
- Honma, Yoshiharu
- Honma, Yoshiharu
- Honnorat, André, 1868-1950
- Honolulu Aquarium.
- Honolulu Seed Company.
- Honorato-Da-Silva, Marcos
- Honorio, Euridice
- Honório, Nildimar Alves
- Honrado, João
- Honrado, João José Pradinho
- Honrath, E G
- Honrath, Eduard G
- Honrubia, M
- Honrubia, Mario
- Honsberger, David
- Honsberger, David N.
- Honsberger, Maya
- Honsberger, P
- Honschek, Oliver
- Hontoria, Francisco
- Hoock, Heinz
- Hood River Valley Nursery Company.
- Hood, Alessandra
- Hood, Betsy.
- Hood, C L
- Hood, C S
- Hood, Catherine
- Hood, Charles
- Hood, Charles I.
- Hood, Clarence Ellswoth, 1844-1912
- Hood, Clifford E.
- Hood, Craig S.
- Hood, D W
- Hood, D. W. (Donald Wilbur), 1918-
- Hood, Dale J.
- Hood, E. G.
- Hood, George W. (George William), 1886-
- Hood, George W.,
- Hood, Gerry
- Hood, Glynnis A. 1964-
- Hood, J
- Hood, J A
- Hood, J. Douglas (Joseph Douglas), 1889-1966
- Hood, Jane,
- Hood, Jennifer L A
- Hood, John
- Hood, Kent Williams.
- Hood, Lewis E
- Hood, M Roy
- Hood, Mark
- Hood, R. A. D.
- Hood, Robert W
- Hood, S. C. (Samuel Clarke), 1880-
- Hood, Samuel
- Hood, Samuel Clarke,
- Hood, Sarah C.,
- Hood, W. Taylor.
- Hood, Walter, 1958-
- Hood, William L., II
- Hoodacres Delphiniums.
- Hoodacres Originating Gardens.
- Hooe, Michael.
- Hoof, M.
- Hoofed Mammal Team @
- Hoofer, Steven R
- Hoofer, Steven R.
- Hooft, Jan
- Hooft, Pim van, 1969-
- Hooge, M
- Hooge, M D
- Hoogenboom, Mia
- Hoogendaarn, W
- Hoogendoorn Nurseries,
- Hoogenstrijd, Gert
- Hoogerwerf, A
- Hoogesteijn, Rafael
- Hoogeveen, Dassen Zu
- Hoogeveen, Theodorus, 1745-1787
- Hooghe, Romeyn de, 1645-1708
- Hooghiemstra, Henry
- Hoogland, Ruurd D.
- Hoogmoed, Marinus S.
- Hoogmoed, Marinus Steven
- Hoogstraal, Harry, 1917-1986
- Hooijer, D A
- Hooijer, Dirk Albert
- Hooijer, Dirk Albert.
- Hook, A
- Hook, A W
- Hook, Allan
- Hook, Allan W
- Hook, C
- Hook, Cathy
- Hook, Dan C.
- Hook, Lloyd L.
- Hook, P. B.
- Hook, Raymond
- Hook, Robert W. (Robert Warren)
- Hook, Sabra J
- Hook, Wallace, 1874-
- Hookabe, Natsumi
- Hooke, Robert, 1635-1703
- Hooker Nurseries.
- Hooker, A
- Hooker, C W
- Hooker, Charles, 1799-1863
- Hooker, Davenport 1887-
- Hooker, Frances Harriet Henslow, 1825-1847
- Hooker, Frances, 1825-1847
- Hooker, Henrietta E
- Hooker, Henry Daggett, 1892-1929
- Hooker, Hyacinth Symonds, 1842-1921
- Hooker, J J
- Hooker, John R. (John Robert), 1896-
- Hooker, Joseph Dalton, 1817-1911
- Hooker, Maria D.
- Hooker, N
- Hooker, Paul Jerome, 1943-
- Hooker, S H
- Hooker, Sascha K.
- Hooker, Simon H
- Hooker, W.
- Hooker, W. A. (William Anson), 1877-
- Hooker, William A.,
- Hooker, William Jackson, Sir, 1785-1865
- Hooker, William, 1779-1832
- Hooker, Worthington, 1806-1867
- Hooker, Yuri
- Hook's Nursery.
- Hooks, G. E. (G. Edward)
- Hooks, Susan
- Hooks, Susan Lee
- Hookway, Will.
- Hool, George A. (George Albert), 1883-
- Hoole, Samuel, 1757 or 8-1839
- Hoolihan, J
- Hoop, Adrianus van der.
- Hoopa Tribal Forestry.
- Hooper, Benjamin
- Hooper, Beth (Elizabeth A.)
- Hooper, C. L. 1842-1900
- Hooper, Calvin L.
- Hooper, Cecil H.
- Hooper, Charles Edward, 1867-
- Hooper, Craig H.
- Hooper, David, 1858-1947
- Hooper, Donald F.
- Hooper, E T
- Hooper, E. J. (Edward James), 1803-
- Hooper, Edward W.
- Hooper, Edward William, 1839-1901
- Hooper, Elisabeth Andrews
- Hooper, Gertrude Mellen.
- Hooper, Harvey
- Hooper, I
- Hooper, J
- Hooper, J D
- Hooper, J N A
- Hooper, J.
- Hooper, J. C.
- Hooper, John
- Hooper, John A
- Hooper, John N A
- Hooper, John Na
- Hooper, John, 1802-1869
- Hooper, Johnson Jones, 1815-1862
- Hooper, Laura R E
- Hooper, Lucy, 1816-1841
- Hooper, M J
- Hooper, Robert G
- Hooper, Robert, 1773-1835
- Hooper, Ruth Lynn
- Hooper, Tracey D.
- Hooper, William Hulme, 1827-1854
- Hooper, William, fl 1770-
- Hoopes & Brother.
- Hoopes, Abner 1836-1920
- Hoopes, Abner.
- Hoopes, Bernard A.
- Hoopes, Bro. & Thomas (Firm)
- Hoopes, Bro. & Thomas Company.