- Rivera, W. H.
- Rivera-Cabrera, F
- Rivera-Correa, Mauricio,
- Rivera-Cruz María Del C.
- Rivera-Cruz María Del Carmen
- Rivera-Espinoza, Yadira
- Rivera-García, E.
- Rivera-Gasperín Sara Lariza
- Rivera-Hernández, Jaime Ernesto
- Rivera-Hutinel Antonio
- Rivera-Ingraham, Georgina A
- Rivera-Lombardi, Roberto Javier
- Rivera-Milán, Frank F
- Rivera-Milla Eric
- Rivera-Muñoz, Gerardo
- Rivera-Nava, Juana Laura
- Rivera-Pomar, Rolando V
- Rivera-Rebolledo, Juan Arturo
- Rivera-Reyes, JG
- Rivera-Rios, Estrella G
- Rivera-Rivera, Emerenciano
- Rivera-Rodríguez, Diana María
- Rivera-Rodríguez, María Cruz
- Rivera-Ruiz, Agesilas
- Rivera-Usme, JJ
- Rivera-Vázquez Ricardo
- Rivera-Velázquez, Gustavo
- Rivera-Vilarelle, María
- Riverbank Gardens.
- Riverby Iris Gardens.
- Riverdale Nurseries (Riverdale, Ga.)
- Riverdale Nurseries and Gardens.
- Rivero Mega, M. S
- Rivero y Ustáriz, Mariano Eduardo de, 1798-1857
- Rivero, Armando Efraín Gil
- Rivero, Diego
- Rivero, Edgar
- Rivero, Juan A.
- Rivero, L Howell
- Rivero, M. Silvia
- Rivero, Ma. Silvia
- Rivero, Magaly
- Rivero, María S
- Rivero, María S.
- Rivero, María Silvia
- Rivero-Blanco, C
- Rivero-Espejel Ignacio
- Riveros, José
- Riveros, Magaly
- Riveros-Riffo Edvin
- Riveros-Riffo, Edvin
- River'S Edge Farm,
- River's Edge Flower Farm.
- Rivers, Grace W.
- Rivers, I L
- Rivers, J. J. (John James) 1824-1913
- Rivers, James W
- Rivers, M L
- Rivers, May
- Rivers, R. J.
- Rivers, T. Francis.
- Rivers, Thomas
- Rivers, Thomas, 1798-1877
- Rivers, Virginia
- Rivers, W. C.
- Rivers, W. H. R. 1864-1922
- Riverside Farm (Rahway, N.J.)
- Riverside Farms,
- Riverside Farms.
- Riverside Gardens (Ames, Iowa)
- Riverside Gardens (Homer, N.Y.)
- Riverside Gardens (St. Louis, Mich.)
- Riverside Gladiolus Gardens.
- Riverside Nurseries (Phoenix, Ariz.)
- Riverside Nurseries.
- Riverside Nursery (Annapolis Royal, N.S.)
- Riverside Nursery (Hillyard, Wash.)
- Riverside Nursery (Spokane, Wash.)
- Riverside Nursery (Winchester, Tenn.),
- Riverside Nursery and Fruit Farm.
- Riverside Nursery, Fruit, Red Hog and Fancy Poultry Farm.
- Riverside Nursery.
- Riverside Press, Cambridge, Mass.
- Riverside Public Library (Calif.)
- Rivert, M Gabriel
- Rivert-Carnac, John Henry
- Riverview Farms,
- Riverview Farms.
- Riverview Gardens (Saint Paul, Minn.)
- Riverview Gardens Nursery (St. Paul, Minn.)
- Riverview Gardens.
- Riverview Glad Gardens.
- Riverview Nursery and Seed Co.
- Riverview Orchids.
- Rives, William C.
- Rives, William Cabell, 1825-1889
- Rives, William Cabell, 1850-1938
- Rivest, Brian R.
- Rivest, Louis-Paul
- Rivet, Gabriel
- Rivet, P
- Rivett, A C D
- Rivett, Maud F.
- Rivett, Rayden A
- Rivett-Carnac, John Henry
- Rivier, Laurent
- Rivière, Auguste, 1821-1877
- Riviere, B B
- Rivière, Charles, 1845-
- Rivière, G H
- Rivière, Henriëtte Christine Charlotte la, 1888-
- Rivière, M Gustave
- Rivington, Francis, 1745-1822
- Rivington, John, 1720-1792
- Rivnay, E
- Rivnay, Ezekiel
- Rivoallan, Jean-Marie, 1748-1812
- Rivoire, Bernard
- Rivosecchi, L
- Rivosecchi, Leo
- Rix, Alan
- Rix, M G
- Rix, Michael
- Rix, Michael G
- Rixford, Emmet
- Rixford, Gulian Pickering, 1838-1930
- Rixon, A E
- Riyanto, Awal
- Rizal, Syed
- Rizki, M T M
- Rizman-Idid, Mohammed
- Rizo, José F
- Rizo-Aguilar, Areli
- Rizvi, Fazal
- Rizvi, Parvez Qamar
- Rizvi, S S A
- Rizvi, S. Kama A.
- Rizvi, Syed Anser
- Rizzato, Pedro Pereira
- Rizzatti, Ferruccio, 1862-
- Rizzi, A. D. (Aldo Damiano), 1906-1985
- Rizzi, E
- Rizzi, E. S.
- Rizzini, Carlos Toledo
- Rizzini, Cecilia Maria
- Rizzo, Alexandra E
- Rizzo, Alexandra E.
- Rizzo, Alexandra E.
- Rizzo, Alexandra Elaine
- Rizzo, Andrea
- Rizzo, Daniele
- Rizzo, David M
- Rizzo, Elizete
- Rizzo, José A.
- Rizzo, José Ângelo
- Rizzo, Luciana V.
- Rizzo, M G
- Rizzo, Maria Concetta
- Rizzo, Valeria
- Rizzolo, Attilio
- Rizzolo, Jessica
- Rizzuto, Susana
- Rjeibi, Moncef
- R'kha, Samia
- Ro, Kyung-Eui
- Ro, Tae Ho
- Roa, Andrea
- Roa, Fernando
- Roa, Guido
- Roa, Luis
- Roa, O.
- Roa, Raul Alffonso Rodrigues
- Roach, Archibald W
- Roach, Bradie
- Roach, F. Harold
- Roach, J. Anthony
- Roach, Orman P.
- Roach, S H
- Roach, Steven H
- Roache, Lewie C
- Road Density Analysis Task Team.
- Road, P
- Roads, Katie M
- Roaf, Herbert Eldon, 1881-
- Roaf, John, 1801-1862
- Roa-Fuentes, Camilo Andrés
- Roalkvam, R
- Roalson, Eric H
- Roani, Suelem H.
- Roani, Suelen Holterman
- Roanoke County Nursery.
- Roanoke Nurseries.
- Roark, R. C. (Ruric Creegan)
- Roat, Daniela
- Roat, Katie E.
- Roa-Varón, Adela
- Rob, R
- Roback, S S
- Roback, Selwyn S
- Roback, Ss
- Robacker, David
- Robaina, Germán
- Robak, Matthew
- Robaldo, Ricardo Berteaux
- Robards, Fredrick C.
- Robards, Martin D.
- Robarts, Richard D.
- Robaszynski, Francis
- Robaux, P
- Robaux, Pierre
- Robayo-Palacio, Lina Marcela
- Robb, D. Constable
- Robb, Donald L.
- Robb, George L
- Robb, J
- Robb, James, 1815-1861
- Robb, Joan
- Robb, L. A. (Leslie Ann), 1960-
- Robba, E
- Robba, Elio
- Robbe, Pierre
- Robbertse, P J
- Robbiati, Federico
- Robbin, Daniel M.
- Robbins, A H
- Robbins, Asher, 1761-1845
- Robbins, C B
- Robbins, C Brian
- Robbins, C. A.
- Robbins, Chandler S.
- Robbins, Charles Henry
- Robbins, Christine Chapman
- Robbins, E. C.
- Robbins, E.C.
- Robbins, E.C. (Firm)
- Robbins, Ellen.
- Robbins, Frank
- Robbins, Fred Earl.
- Robbins, G. Thomas
- Robbins, Harriet L
- Robbins, Herbert C
- Robbins, J
- Robbins, James Watson, 1801-1879
- Robbins, John
- Robbins, John A.
- Robbins, John, 1500?-1558
- Robbins, Louise M. (Louise Marie)
- Robbins, Lynn W.
- Robbins, M B
- Robbins, M. Kathryn.