- Fort Smith Seed Company.
- Fort Worth Seed Co.
- Fort, Charles, 1874-1932
- Fort, F
- Fort, Julian Harrison, 1874-
- Fortabat, S H
- Fortanelli-Martínez, Javier
- Fortas, Z
- Forte, Luigi
- Forte, Sofia
- Forte, Yuri A.
- Forteath, G N R
- Forteath, G Nigel R
- Forteguerri, Scipione, 1466-1515
- Fortelius, Mikael
- Fortelius, Mikael.
- Fortes, Andrea Maria Teixeira
- Fortes, Jose
- Fortes, Nilo G S
- Fortes, Nora D. F.
- Fortes, Nora Denise Fortes De
- Fortes, Nora Denise Fortes de
- Fortes, Patricia
- Fortes, Rafael
- Fortes, Rafael Rocha
- Fortes, Silvana Túlio
- Fortes, Vanessa B.
- Fortes, Vanessa Barbisan
- Fortes, Wagner L.
- Fortescue, Hugh Fortescue 3rd earl, 1818-1905
- Fortescue, Hugh Fortescue, 3d Earl, 1818-1905
- Fortescue, J. W. Sir, (John William), 1859-1933
- Fortescue-Brickdale, Eleanor
- Fortey, R A
- Fortey, Richard A
- Forth, Gregory
- Förther, Harald, 1963-
- Forthman, Michael
- Forti, Achille, 1878-1937
- Forti, G
- Forti, LR
- Forti, LR.
- Forti, Lucas Rodriguez
- Forti, Luiz Carlos
- Forti, Massimo
- Forti, Maurizio
- Fortier, J C
- Fortier, Jenny L.
- Fortier, Joseph
- Fortier, Joseph C
- Fortier, Riley P.
- Fortier, Samuel, 1855-1933
- Fortier, Samuel.
- Fortin, Christian 1968-
- Fortin, Georges-Noël.
- Fortin, Guy
- Fortin, Marie-Josée
- Fortin, Masson (Firm),
- Fortin, Pierre, 1823-1888
- Fortin,Rejean
- Fortini, Lucas B
- Fortini, Paola
- Fortis Hernández, Manuel
- Fortis, Alberto, 1741-1803
- Fortis-Hernández, M
- Fortis-Hernández, Manuel
- Fortiz, Judith
- Fortney, Ashley N.
- Fortney, Richard A
- Fortsch, David E. 1934-2015
- Fortson, Lucy
- Fortuna, Jaqueline Rizzi
- Fortuna, Monique D.
- Fortuna, Paweł
- Fortuna-Perez, Ana Paula
- Fortunato, Damián M.
- Fortunato, DS.
- Fortunato, H
- Fortunato, Helena
- Fortunato, R H
- Fortunato, Renée
- Fortunato, Renee H
- Fortunato, Renée H
- Fortunato, Renée H.
- Fortunato, Roberta Callicó
- Fortune, Reo, 1903-1979
- Fortune, Robert, 1813-1880
- Fortuner, Renaud
- Fortuyn, AE. B. Droogleever.
- Fortwaengler, Christian
- Forward, R B
- Forward, Richard
- Forward, Richard B
- Forward, Walter, 1786-1852
- Forwood, W. H. (William Henry), 1838-1915
- Forwood, William Henry, 1838-1915
- Forwood, William Stump, 1820-1892
- Forziati, Alphonse F.
- Forzza, R C
- Forzza, R. C.
- Forzza, Rafaela Campostrini
- Fosaa, A M
- Fosalie, Mikal Hegġelund, 1855-1909
- Fosback, O. E. (Joan)
- Fosberg, F. Raymond (Francis Raymond), 1908-1993
- Fosberg, Michael A.
- Fosdick, Lucian J. (Lucian John), 1849-
- Fosdick, Michael
- Fosen, E. H. (Edwin H.), 1898-
- Foshag, (William Frederick), 1894-1956
- Foshee, Bethany
- Foskett, J Kevin
- Foslie, M
- Foslie, Mikal Heggelund, 1855-1909
- Foss Heaton Glad Gardens.
- Foss, Dorothy
- Foss, James H.
- Foss, Scott E
- Fossati, Claudio
- Fosse, Gisle
- Fosse-Filho, João Carlos
- Fossen, Erlend
- Fosset, Adolphe.
- Fossey, Matthew
- Fosshagen, Audun
- Fossier,
- Fossil Collectors Association of Australasia
- Fossøy, Frode
- Fossum, Heather C
- Fossum, Mennick Truman, 1912-
- Foster & Griffith.
- Foster & Sons (Sydney, N.S.W.),
- Foster Nurseries (Denton, Tex.)
- Foster Nurseries (Houston, Tex.),
- Foster Nurseries (Normal, Ill.)
- Foster Nursery Company,
- Foster Wheeler Environmental Corporation.
- Foster, A P
- Foster, A.
- Foster, A.O.
- Foster, Adriance S
- Foster, Adriance S. (Adriance Sherwood), 1901-1973
- Foster, Albert Scott,
- Foster, Amber K
- Foster, Andrew P
- Foster, Andy
- Foster, Arthur C. (Arthur Crawford), 1893-
- Foster, B A
- Foster, Benjamin G
- Foster, Brian
- Foster, Brian A
- Foster, Bunny.
- Foster, C B
- Foster, Carl, Mrs.
- Foster, Carolyn A
- Foster, Charles J. 1820-1883
- Foster, Charles James, 1820-1883
- Foster, Charles S P
- Foster, Christopher W.
- Foster, Clinton
- Foster, Clinton B
- Foster, Craig N.
- Foster, D E
- Foster, D R
- Foster, D. & W.H. Ashbourne.
- Foster, D.,
- Foster, Dan A.
- Foster, David E.
- Foster, David R. 1954-
- Foster, David, 1815-
- Foster, Dwight, 1828-1884
- Foster, Edward 1930
- Foster, Edwin W.
- Foster, Elizabeth
- Foster, Ellery.
- Foster, Everett
- Foster, F H
- Foster, Festus, 1776-1845
- Foster, G
- Foster, G L
- Foster, G. N. (Garth Nicholas), 1944-
- Foster, Garry W.
- Foster, Garth N
- Foster, Gene F
- Foster, Geo J.
- Foster, Geo. J.
- Foster, George A.
- Foster, George Carey, 1835-1919
- Foster, George E. Sir, (George Eulas), 1847-1931
- Foster, George M, (George McClelland- 1913-2006-
- Foster, George M. (George McClelland), 1913-2006
- Foster, Gertrude B.
- Foster, H Lincoln
- Foster, Helen D.
- Foster, J. B.
- Foster, J. B.
- Foster, J. H.
- Foster, J. H. (John Harold), 1880-
- Foster, J. W.
- Foster, J.B.
- Foster, James M
- Foster, Jamie S
- Foster, Janice C
- Foster, Jarryd
- Foster, Joel M.
- Foster, Joel McCamant, 1876-
- Foster, John
- Foster, John M
- Foster, John W. S., III
- Foster, John.
- Foster, L S
- Foster, L. S.
- Foster, Luke
- Foster, Lyman Spalding.
- Foster, M
- Foster, M A
- Foster, M S
- Foster, M. Sir, (Michael), 1836-1907
- Foster, Mary Frazer Le Cron, 1914-
- Foster, Mercedes S
- Foster, Michael S
- Foster, Mulford B. (Mulford Bateman), 1888-1978
- Foster, Mulford Bateman, 1888-
- Foster, N R
- Foster, N. M.
- Foster, Nancy (Nancy Marie), 1941-
- Foster, Nevin H
- Foster, Nr
- Foster, Olive Hyde.
- Foster, Paul
- Foster, Phil.
- Foster, Philip Worthington, 1910-
- Foster, R
- Foster, R C
- Foster, R J
- Foster, R. C.
- Foster, Rachel
- Foster, Racine Sarasy,
- Foster, Ralph
- Foster, Rebecca Jacqueline
- Foster, Reginald B.
- Foster, Richard W.
- Foster, Robert
- Foster, Robert C
- Foster, Robert C.
- Foster, Robert Crichton
- Foster, Robert F. 1965-
- Foster, Robert H.
- Foster, Robin
- Foster, Robin B