- Richardson, E. W. (Edmund William), 1861-
- Richardson, Edward
- Richardson, Edwin Hautonville, 1863-
- Richardson, Eugene S., Jr. (Eugene Stanley), 1916-1983
- Richardson, Evan S.
- Richardson, F D
- Richardson, Frank
- Richardson, G B
- Richardson, G. F. (George Fleming), 1796?-1848
- Richardson, George.
- Richardson, H E
- Richardson, H. D.
- Richardson, H. D.
- Richardson, H. P.
- Richardson, H.D.
- Richardson, Harriet
- Richardson, Harvey W.
- Richardson, Henry
- Richardson, Hope H.
- Richardson, Howard
- Richardson, Hubert
- Richardson, J B
- Richardson, J C
- Richardson, J R
- Richardson, J. H.,
- Richardson, James B. III
- Richardson, James E
- Richardson, James W.
- Richardson, James, 1806-1851
- Richardson, Jeff
- Richardson, Jenness.
- Richardson, John
- Richardson, John B
- Richardson, John L.
- Richardson, John M., 1820-1899
- Richardson, John Maunsell, 1846-
- Richardson, John S
- Richardson, John, 1946-
- Richardson, John, Sir, 1787-1865
- Richardson, Joyce R
- Richardson, K C
- Richardson, Kathryn
- Richardson, Kay
- Richardson, Kristyn
- Richardson, L R
- Richardson, L.R
- Richardson, Laurence R
- Richardson, Lawrence R
- Richardson, Louise
- Richardson, M. T. 1843-
- Richardson, Mark
- Richardson, Martha Bebb,
- Richardson, Mary
- Richardson, Mary E.
- Richardson, Mary Lou.
- Richardson, Mary Neal
- Richardson, Mervyn.
- Richardson, Michael J
- Richardson, Milton Thomas, 1843-
- Richardson, N
- Richardson, Nancy E
- Richardson, Naomi
- Richardson, Oliver H. (Oliver Huntington), 1866-1936
- Richardson, Orla.
- Richardson, P
- Richardson, P Mick
- Richardson, P R K
- Richardson, Philip Morrison, 1904-
- Richardson, R E
- Richardson, R. J.
- Richardson, Robert Earl
- Richardson, Robert Earl, 1877-
- Richardson, Robert J
- Richardson, S. D.
- Richardson, Sally L.
- Richardson, Sarah S., 1980-
- Richardson, Scott A.
- Richardson, Sir John
- Richardson, Susan L
- Richardson, T D
- Richardson, Terry
- Richardson, Thomas
- Richardson, Tobias G.
- Richardson, Vanessa
- Richardson, W John
- Richardson, W Scott
- Richardson, W. L. (William Lambert), 1842-1932
- Richardson, W.F.
- Richardson, William B.
- Richardson, William Bebb.
- Richardson, William N.
- Richardson, William, 1740-1820
- Richardson'S Pansy Farm And Greenhouses,
- Richards-Zawacki, Corinne L
- Richarson Bro's.
- Richart, C H
- Richart, Casey
- Richarz, Klaus
- Richdale, L E
- Riché, A. (Adèle), 1791-1878
- Riche, Attale, 1851-
- Richelle-Maurer, E
- Richenbach, Heinrich Gottlieb Ludwig, 1793-1879
- Richendollar, Becky
- Richendollar, Becky @
- Richens, Voit B. 1927-
- Richer de Forges, Bertrand, 1948-
- Richer, Renee
- Richerand, A. (Anthelme), 1779-1840
- Richers, K
- Richerson, P J
- Richert, Susan T.
- Richert-Pöggeler, Katja R.
- Riches, Andrew
- Riches, C R
- Riches, Charles R
- Richet, Charles Robert, 1850-1935
- Richetti, Patricia
- Richey, Dorothy.
- Richey, Eugene P.
- Richey, Frederick D. (Frederick David), 1884-
- Richey, H W
- Richey, Isabel M.
- Richey, Jeffrey Edward
- Richey, Tina
- Richford, Andrew S
- Richglad Garden.
- Richiardi, Sebastiano, 1834-1904
- Richie, A
- Richie, Bobbie C.
- Richieri, Alejandro
- Richins, G H
- Richins, Gary H
- Richland Gardens,
- Richman & Mills.
- Richman, David B. (David Bruce), 1942-
- Richman, E. S.
- Richman, E.S.
- Richman, L. C.
- Richman, Lisa A.
- Richman, T
- Richmond Chamber of Commerce (Richmond, Va.)
- Richmond Commercial Nurseries.
- Richmond Gardens (Cleveland, Ohio)
- Richmond Nurseries (Richmond Beach, Wash.)
- Richmond Nursery (Richmond Beach, Wash.)
- Richmond, Benjamin S.
- Richmond, Charles S.
- Richmond, Charles Wallace, 1868-1932
- Richmond, D
- Richmond, Edward Avery
- Richmond, G S
- Richmond, Gina
- Richmond, Henry Droop.
- Richmond, I. L.
- Richmond, James A
- Richmond, M. S.
- Richmond, Matthew D
- Richmond, Michele
- Richmond, Milo E
- Richmond, Myrtle L.
- Richmond, Neil D.
- Richmond, R D
- Richmond, Robert John.
- Richmond, Rollin C
- Richmond, Stephanie
- Richmond, Stewart S
- Richon, Charles Édouard, 1820-1893
- Richon, M Ch
- Richter
- Richter, A.
- Richter, Adrian
- Richter, Alexandra
- Richter, B D
- Richter, C
- Richter, C M
- Richter, Charles, 1892-
- Richter, Curt Paul, 1894-1988
- Richter, Dana L.
- Richter, Daniela
- Richter, Eduard
- Richter, Elisabeth
- Richter, Friedr
- Richter, Georg Friedrich, 1691-1742
- Richter, Gotthard
- Richter, H
- Richter, H G
- Richter, H. C.,
- Richter, Hans Georg
- Richter, Heinrich, 1830-1890
- Richter, Henry Constantine, 1821-1902
- Richter, Hermann Eberhard Friedrich, 1808-1876
- Richter, J. A.
- Richter, Joachim
- Richter, Johann Christophe, 1689-1751
- Richter, Karl, 1855-1891
- Richter, Lajos
- Richter, Lee
- Richter, M. C. (Max Clemens), 1884-
- Richter, Michael
- Richter, Oswald
- Richter, Otto
- Richter, P O
- Richter, P. B. (Paul Boguslav), 1853-1911
- Richter, Paul Boguslav,
- Richter, Paul Emil, 1844-1918
- Richter, R
- Richter, Reiner
- Richter, Reinhard
- Richter, Reinhard, 1813-1884
- Richter, Robin
- Richter, Rudolf, 1881-
- Richter, Russell
- Richter, Stefan
- Richter, Stephen C.
- Richter, Willi (Willy)
- Richter, Wolfgang von
- Richter'S Greenhouse,
- Richters, Ferdinand, 1849-1914
- Richthofen, Ferdinand Freiherrvon
- Richthofen, Ferdinand, Freiherr von, 1833-1905
- Richwood Dahlia Gardens.
- Rici, R. E. G.
- Rici, Rose E. G.
- Rick Dawson, Denis A Saunders
- Rick, Anne Meachem
- Rick, C M
- Rick, Charles M
- Rick, J
- Rick, Jessica A.
- Rickard, E
- Rickard, Lora G
- Rickard, R
- Rickard, R H
- Rickards Bros.
- Rickards, Barrie
- Rickards, Burt Ransom, 1876-
- Rickards, Jerry
- Rickards, R B
- Rickards, R Barrie
- Rickards, Richard Barrie
- Rickards, Susan H
- Rickards, William L
- Rickart, Eric A.
- Rickel, Debbie
- Ricken, Adalbert
- Ricken, Cláudio
- Rickenbacher, J
- Ricker
- Ricker National Nursery Co.