- Smeltzer, G. G.
- Smetacek, Peter
- Smetacek, Rajani
- Smetacek, V
- Smetana, Aleš
- Smethie, William M.
- Smethurst, Mark E
- Smethurst, R.
- Smets, E
- Smets, Erik
- Smets, Erik F.
- Smettan, Klaus
- Smeulders
- Smid, Jiří
- Smiderle, Eder Cristian
- Smiderle, Oscar José
- Smidt, E C
- Smidt, Eric C
- Smidt, Eric de Camargo
- Smidt, Robert K
- Smielowski, J
- Smiet, A C
- Smilanick, J M
- Smilby, Francis.
- Smildsin, Meredith
- Smiles, Bev
- Smiles, R L
- Smiles, Robert L
- Smiles, Samuel, 1812-1904
- Smiley, Albert Keith, 1910-
- Smiley, B. D.
- Smiley, Daniel, 1907-1989
- Smiley, Edwina M.
- Smiley, Edwina Maria,
- Smiley, Erle,
- Smiley, Frank J
- Smiley, Frank Jason, 1880-
- Smiley, Harry M.
- Smiley, R L
- Smiley, S
- Smiley, Sarah Frances, 1830-
- Smiley, Scott
- Smiley's Water Gardens.
- Smillie, James David, 1833-1909
- Smilowitz, Zane
- Sminia, T
- Smirke, Sydney, 1798-1877
- Smirnoff, W A
- Smirnov, Alexei
- Smirnov, Alexey
- Smirnov, Eugen S
- Smirnov, N. N.
- Smirnov, S E
- Smirnow, Louis.
- Smissen, Rob
- Smiszek, Magdalena
- Smit, A B
- Smit, F. G. A. M. (Franciscus Gerardus Albertus Maria), 1920-2000
- Smit, G.,
- Smit, Harry
- Smit, I.,
- Smit, Janna
- Smit, John
- Smit, John T
- Smit, Joseph, 1836-1929
- Smit, Kaylee Pamela
- Smit, Nico
- Smit, P. J.,
- Smit, T., active 1879-
- Smith & Reed Co.
- Smith & Son.
- Smith Abbott, Joseph
- Smith Bros.
- Smith Bros. Nurseries.
- Smith Bros.' Nurseries.
- Smith Bros. Nursery Co.
- Smith Bros. Nursery Co. (Concord, Ga.),
- Smith Bros. Seed Company.
- Smith Brothers (Concord, Ga)
- Smith Brothers (Concord, Ga.)
- Smith Brothers Nurseries (Centerville, Utah)
- Smith Brothers' Nurseries (Centerville, Utah)
- Smith Brothers Seed Company.
- Smith Brothers.
- Smith Bulb Gardens (Clarkston, Wash.)
- Smith Colombian Expedition (1898-1901)
- Smith Gardens (Lewiston, Idaho),
- Smith Hazen & Son.
- Smith, A
- Smith, A A
- Smith, A C
- Smith, A H V
- Smith, A Hopewell
- Smith, A K
- Smith, A L
- Smith, A M
- Smith, A P
- Smith, A S
- Smith, A V
- Smith, A. (Andrew), 1835-1910
- Smith, A. B.
- Smith, A. Croxton (Arthur Croxton), 1865-1952
- Smith, A. E., of Auburn, N.Y. (?)
- Smith, A. F.
- Smith, A. G.
- Smith, A. G.
- Smith, A. G. (Alfred Glaze), 1881-
- Smith, A. Jonathan
- Smith, A. L.
- Smith, A. Malins
- Smith, A. Mervyn.
- Smith, A. P.
- Smith, A. W.
- Smith, Aaron
- Smith, Adam
- Smith, Adam C
- Smith, Adam T
- Smith, Adam, active 1768-1770
- Smith, Adrian
- Smith, Agnes A
- Smith, Alan D.
- Smith, Alan P.
- Smith, Alan R., 1943-
- Smith, Albert C
- Smith, Albert C. (Albert Charles), 1906 Apr 5-
- Smith, Alex K
- Smith, Alexander H
- Smith, Alexander H. (Alexander Hanchett), 1904-1986
- Smith, Alexander K
- Smith, Alexander Kennedy
- Smith, Alexander, 1865-1922
- Smith, Alfred Charles, 1822-1898
- Smith, Alice Josephine.
- Smith, Allen A
- Smith, Allen Christian 1882-
- Smith, Allen John, 1863-1926
- Smith, Allyn G
- Smith, Allyn Goodwin
- Smith, Alva H.
- Smith, Amelia Woolworth. 1858-
- Smith, Amos B
- Smith, Amy
- Smith, Andrea L.
- Smith, Andrés
- Smith, Andrew
- Smith, Andrew
- Smith, Andrew
- Smith, Andrew
- Smith, Andrew B.
- Smith, Andrew B. T.
- Smith, Andrew M
- Smith, Andrew T
- Smith, Andrew, 1914
- Smith, Andrew, 1797-1872
- Smith, Andrew, of St Cyrus, 1828-1898
- Smith, Andrew, Sir, 1797-1872
- Smith, Andrew.
- Smith, Andy
- Smith, Angela L
- Smith, Anker, 1759-1819
- Smith, Anna Harris, 1843-1929
- Smith, Anna Marie.
- Smith, Anna W
- Smith, Anne
- Smith, Anne Marie
- Smith, Annie Delories, 1944-
- Smith, Annie Lorrain, 1854-
- Smith, Annie Morrill, 1856-1946
- Smith, Arfon
- Smith, Arma Anna
- Smith, Arthur C
- Smith, Arthur Carlton,
- Smith, Arthur D. (Arthur Dwight), 1907-1993
- Smith, Arthur Donaldson, 1866-1939
- Smith, Arthur E. 1960-
- Smith, Arthur E.,
- Smith, Arthur Edward.
- Smith, Arthur F
- Smith, Arthur H. (Arthur Henry), 1893-1976
- Smith, Arthur Lloyd.
- Smith, Ashton
- Smith, Aubrey H.
- Smith, Augustus Frederick
- Smith, Austin Paul
- Smith, Austin Paul.
- Smith, B
- Smith, B A
- Smith, B D
- Smith, B H
- Smith, B J
- Smith, B N
- Smith, B S
- Smith, B W
- Smith, B. F.
- Smith, B. M.
- Smith, Barbara
- Smith, Barry C
- Smith, Beck, and Beck.
- Smith, Bena R
- Smith, Benjamin Willard, 1951-
- Smith, Benton M.
- Smith, Bernard Howard.
- Smith, Bertha B.
- Smith, Bertram G. (Bertram Garner), 1876-1945
- Smith, Blakeman S.
- Smith, Bonnie J Bobula
- Smith, Bonnie.
- Smith, Bradley
- Smith, Brent D
- Smith, Brett
- Smith, Brian
- Smith, Brian E
- Smith, Brian E. and Jonathan A. Campbell.
- Smith, Brian F
- Smith, Brian H.
- Smith, Brian J
- Smith, Brian W. (Biologist)
- Smith, Bruce
- Smith, Bruce A
- Smith, Bruce D
- Smith, Bruce H.
- Smith, Bruce N
- Smith, Buckingham, 1810-1871
- Smith, Burke
- Smith, Burnett, 1877-1958
- Smith, Burton J., 1932-
- Smith, C A
- Smith, C D
- Smith, C F
- Smith, C P
- Smith, C R
- Smith, C Resch
- Smith, C. A. S.
- Smith, C. Alphonso 1864-1924
- Smith, C. B.
- Smith, C. D.
- Smith, C. D. (Conaro Drayton), 1813-1894
- Smith, C. Earle (Claude Earle), 1922-1987
- Smith, C. F.
- Smith, C. H.
- Smith, C. Lavett, 1927-
- Smith, C. M. (Charles Meldrum), 1889-
- Smith, C.E.
- Smith, Campbell R
- Smith, Carlos
- Smith, Carlos T
- Smith, Carlos T.
- Smith, Carlyle Shreeve.
- Smith, Carroll B.
- Smith, Carroll Bradford, 1868-