- Holsworth, W N
- Holt Brazil Expedition 1921-1922
- Holt manufacturing co., inc.
- Holt White, A. E.
- Holt, Brian D
- Holt, D W
- Holt, Denver W
- Holt, E A
- Holt, E W L
- Holt, Eric A.
- Holt, Ernest G.
- Holt, Ernest Golsan, 1889-
- Holt, Ernest W L
- Holt, Ethel C., Mrs.
- Holt, G W C.
- Holt, George W
- Holt, H. ten
- Holt, J B
- Holt, Jane P
- Holt, Jason
- Holt, Joseph, 1807-1894
- Holt, Neal William.
- Holt, P C
- Holt, Paul
- Holt, Paul I
- Holt, Perry C
- Holt, Sidney J.
- Holt, Terrell W.
- Holt, Valentine S.
- Holt, Vincent M.
- Holt, William R.
- Holt., Ernest W L
- Holtam, Jordan
- Holtan, H. N., 1909-
- Holtan-Hartwig, J
- Holtan-Hartwig, Jon
- Holtedahl, Olaf, 1885-1975
- Holten, Hans Severin, 1806
- Holten, J. S. 1770-1805
- Holter, Louella.
- Holtermann, Carl
- Holtermann, Karie
- Holtheuer, Jorge
- Holthius, L B
- Holthouse, Mark
- Holthuijzen, A M A
- Holthuijzen, Anthonie M. A., 1954-
- Holthuis, L. B. (Lipke Bijdeley), 1921-2008
- Holthus, P
- Hölting, Monique
- Holton & Hunkel Co.
- Holton, Booker
- Holton, Charlotte P.
- Holton, George D., 1920-
- Holton, Isaac F. (Isaac Farwell)
- Holton, Oliver W.
- Holton, Robert L.
- Holton, Virginia B.
- Holton's Iris Gardens,
- Holtsford, T P
- Holttum, R. E.
- Holttum, R. E. (Richard Eric), 1895-1990
- Holtum, R E
- Holt-White R.
- Holt-White, A. E.
- Holt-White, Rashleigh.
- Holtz, F
- Holtz, Fred Leopold.
- Holtz, Frederick Leopld, 1870-
- Holtz, Frederick Leopold, 1870-
- Holtzermann's.
- Holtzinger-Tenever, Hans
- Holtzman, C L
- Holtzman, Julie A.
- Holtzman, Susan.
- Holtzoff, Mark
- Holtzoff, Mary
- Holub, Emil, 1847-1902
- Holubová-Jechová, V
- Holunder, Renan Köpp
- Holusa, Jaroslav
- Holusa, Otakar
- Holway, E W D
- Holway, E. W. D. (Edward Willet Dorland), 1853-1923
- Holway, Effie Aiken
- Holway, Mary, 1872-1965
- Holway, Richard T
- Holwill, F J W
- Holý, Kamil
- Holy, Norman L.
- Holy, Timothy E.
- Holyan, Jim
- Holycross, Andrew T
- Holynska, Maria
- Holynski, Roman B
- Holyoak, A R
- Holyoak, Ar
- Holyoak, D
- Holyoak, D T
- Holyoak, D T
- Holyoak, D. T.
- Holyoak, D. T.
- Holyoak, D. T.
- Holyoak, D. T., Tattersfield, P
- Holyoak, David
- Holyoak, David T
- Holyoak, David T. Ivanovic, M.
- Holyoak, Geraldine A
- Holyoak, M.
- Holyoak, Marcel
- Holyoke Power and Electric Company.
- Holyoke Water Power Company.
- Holz, G G
- Holz, George G
- Holz, Irmhild
- Holzapfel, Christina M
- Holzapfel, Monika
- Holzbach, Arlei J.
- Hölzel, Emil
- Hölzel, H
- Hölzel, Herbert
- Hölzel, Nobert
- Hölzenbein, Stefan
- Holzenthal, Ralph W.
- Holzer, Kimberly K
- Holzer, U
- Holzfuß, Ernst
- Holzhaider, Jennifer
- Holzhalb, Johann Rudolf, 1723-1806
- Holzhammer, E
- Holzhammer, M
- Holzheuser, Chace
- Holzinger, Bill
- Holzinger, J. M. (John Michael), 1853-1929
- Holzinger, W E
- Holzinger, Werner
- Holzman, Barbara A
- Holzmann, Hajo
- Holzmann, Maria
- Holzmeyer, Peter, active 1578-
- Holznagel, W E
- Holznagel, Wallace E
- Holzner, Frank X.
- Holzner, Georg
- Holzschuh
- Holzwarth, Stephani R
- Hom, K
- Hom, Kenneth.
- Hom, R
- Homan, Agnieszka
- Homan, H Jeffrey
- Homan, H. J.
- Homan, Jacqueline A.
- Homan, Joshua,
- Homan, Peter
- Homan, Robert
- Homan, Wc
- Homann, G. G. J.
- Homann, H
- Homans, John A.
- Homberger, D G
- Homberger, Lena
- Hombergh, Heleen van den.,
- Hombron, Jacques-Bernard, 1798-1851
- Homburg, Jeffrey A
- Home Canning Jar Ring Testing Conference Amherst, Mass.) 1945-
- Home Canning Research Conference Kansas City, Mo.) 1946-
- Home Garden Company.
- Home Gardens And Nursery,
- Home Nurseries (Vandervoot, Ark.)
- Home Nursery (LaFayette, Ill.)
- Home Nursery (University Place, Neb.)
- Home Nursery (Vandervoot, Ark.)
- Home Nursery And Gardens,
- Home Nursery Co.
- Home Nursery Co. (Fayetteville, Ark.)
- Home Nursery Co. (Hatfield, Ind.)
- Home Nursery Co. (Liberal, Mo.)
- Home Nursery Company (McCune, Kan.)
- Home Nursery.
- Home of Asters.
- Home, Everard, Sir, 1756-1832
- Home, Francis, 1719-1813
- Home, W M L
- Homedale Nursery And Garden Store,
- Homem, Daniel Henrique
- Homem, Henrique Flores
- Homén, Johann Friedrich, 1797-1862
- Homer F. Chase (Firm)
- Homer F. Chase.
- Homergue, Jean d'
- Homesite Gardens,
- Homestake Mining Company.
- Homestead Fruit Farm.
- Homestead Nurseries.
- Homewood Gardens (Orillia, Ont.)
- Homewood Gardens.
- Homeyer, Alexander von, 1834-1903
- Homeyer, Eugen Ferdinand von, 1809-1889
- Homeyer, Jack W.
- Homma, Alfredo Kingo Oyama
- Hommes, Johannes Hero.
- Homo, Julien
- Homola, E
- Homola, Richard L. 1934-1999
- Homolle, Anne-Marie
- Homoya, Michael A.
- Homrani Bakali, Abdelmonaim
- Homrich, Maria H
- Homsher, P J
- Homziak, Nicholas
- Homziak, Nicholas T.
- Hon Chung Lee, Jonathan
- Hon Djong, Djong
- Hon, Robert Burn
- Hon, Wong S.
- Honaiser, T. C.
- Honan, J A
- Honan, Patrick
- Honch, Gerald
- Honchar, Hanna Yu.
- Honc's Avocado Nursery.
- Honczar, Kellie
- Honczarenko, Krystyna
- Honczaryk, Alexandre
- Honda, H
- Honda, Hikokuro
- Honda, Iwajiro, 1866-
- Honda, Jeffrey Y
- Honda, K.
- Honda, Kazuki
- Honda, Kinkichiro, 1850-1921
- Honda, Masaji 本田正次 1897-1984
- Honda, Rubens Tomio
- Honda, Yutaka
- Hondt, Jean-Loup d'
- Hondt, Marie-José
- Hondt, Marie-José D'
- Hone, Ann
- Hone, M R
- Honecson, B H
- Honegger, Roger William Hutchings
- Honegger, T
- Honeij, James A.
- Honeij, Jerome A.
- Honek, Alois
- Honěk, Alois
- Honess, Ralph E
- Honey, Edwin Earl.
- Honey, James G.