- Popp, E
- Popp, Egon
- Popp, James W
- Popp, Magnus
- Popp, T. E.
- Poppe, G T
- Poppe, Guido T
- Poppe, Jean Lucas
- Poppe, Linda
- Poppe, S A
- Poppel, David M
- Poppendieck, Hans-Helmut
- Poppendieck, H-H
- Poppinga, Simon
- Poppius, Alfred.
- Poppius, B. (Bertil), 1876-1916
- Popple, L W
- Popple, L.W.
- Popple, Lindsay
- Popple, Lindsay W
- Popple, Rosylin
- Popple, S
- Popplewell, William Charles
- Popprius, B
- Poppy, Charles.
- Popson, Mary Ann
- Popta, C M L
- Popta, Canna M L
- Poquet, M
- Poquet, Montserrat
- Poquita-Du, Rosa
- Por, F D
- Por, Francis
- Porat, C
- Porath, C
- Porawski, M.
- Porazinska, Dorota L.
- Porcart, L
- Porcasi, Ximena
- Porceddu, Marco
- Porcel, D
- Porcel, Eduardo
- Porch, Nick
- Porch, S S
- Porchas-Cornejo, MA
- Porchas-Cornejo, Marco A
- Porcher, Francis Peyre, 1825-1895
- Porcher, Frederick A. 1809-1888
- Porcher, Vincent
- Porcheron, A. D.
- Porchetta, Sara
- Porciúncula, Rafael Almeida
- Porco, David
- Pordel, Adel
- Porden, William
- Pordeus, L M
- Porebski, Z. Sue
- Poreda, Stephen F
- Porej, Deni
- Porembski, S
- Porembski, Stefan
- Poremski, Andre
- Porena, Boris
- Porfiri, Juan D
- Porfírio Júnior, Eder
- Porfírio, Grasiela
- Porfirio, Grasiela Edith De Oliveira
- Porfirio, Luciana L
- Porges von Portheim, Leopold, 1869-1947
- Porigneaux, Jean-Marc
- Porini, G.
- Porini, Gustavo
- Porini, Gustavo M.
- Poriya, Paresh
- Porkert, J
- Porley, Ron
- Pormoghadam, Mohammad Javad
- Porn, Mirian A.
- Pornon, André
- Pornpongrungrueng, Pimwadee
- Pornsuriya, Chaninan
- Pornsuriya, Chaninun
- Porobic, Javier
- Porobić, Javier
- Poroi, Elie
- Porphyry, approximately 234-approximately 305
- Porporato, Marco
- Porras, Ana I
- Porras, Louis
- Porras, Pablo
- Porras, R
- Porras, Wendy
- Porras-Múzquiz, Héctor
- Porrini, Darío P.
- Porrini, Leonardo P.
- Porritt, George Taylor, 1848-
- PORRITT, S.W.
- Porritt, T
- Porro, Carlo, 1813-1848
- Porrovecchio, Manuela
- Porsani, M.
- Porsch, Otto
- Porsch, Otto, 1875-
- Pörschmann, Ulrich
- Porsild, A E
- Porsild, A. E. 1901-
- Porsild, A. E. (Alf Erling), 1901-1977
- Porsild, Morten P. (Morten Pedersen), 1872-1956
- Porslid, Morten P.
- Port Allegany Greenhouses.
- Port Aransas Marine Laboratory.
- Port B. Mellinger (Firm)
- Port of Long Beach.
- Port Of Oakland.
- Port Stockton Nursery.
- Port, Kyle
- Porta, Andrés Osvaldo
- Porta, Antonio
- Porta, D
- Porta, Giambattista della, 1535?-1615
- Porta, Giambattista della, approximately 1535-1615
- Porta, J De
- Porta, Pietro
- Portage Lakes Dahlia Gardens.
- Portales, Gloria L
- Portal-Quicaña, Edwin
- Port-Carvalho, Marcio
- Portch, Lorraine
- Porte, Alexandre
- Porté, Annabel J.
- Porte, William Solomon, 1891-
- Portecop, J
- Portecop, Jacques
- Porteiro, Carmela
- Porteiro, F M
- Porteiro, Filipe
- Portela Miguez, Roberto
- Portela, Andrea
- Portela, Cíntia Nicácio
- Portela, Erika
- Portela, Maria do Carmo
- Portela, MCC.
- Portela, Rita Cássia Quitete
- Portela, Rita de Cássia Quitete
- Portela-Castro, A. L. B.
- Portela-Castro, Ana Luiza
- Portelinha, Thiago Costa Gonçalves
- Portell, R W
- Portell, Roger W
- Portella, Alexandre de S.
- Portella, Alexandre De Souza
- Portella, AS
- Portella, Tatiana P.
- Porteners, Marianne
- Portenko, L A
- Portenko, L. A. (Leonid Aleksandrovich), 1896-1972
- Porteous, Pam
- Porteous, Stuart
- Porteous, Trevor
- Porter & Coates,
- Porter & Son, Seedsmen,
- Porter, A H
- Porter, Adam
- Porter, Adam H
- Porter, Alice F.,
- Porter, Ann P.
- Porter, Annie
- Porter, Aswea D.
- Porter, B. A. (Bennet Allen), 1892-
- Porter, Barbara
- Porter, Benjamin F. (Benjamin Faneuil), 1808-1868
- Porter, Bennett A
- Porter, Brian
- Porter, Brooke C
- Porter, C C
- Porter, C. H., active 1863-
- Porter, C. L. (Cedric Lambert), 1905-
- Porter, Calvin A.
- Porter, Carlos E
- Porter, Carolyn
- Porter, Cedric L
- Porter, Charles C.
- Porter, Charles H.
- Porter, Charles Lyman, 1889-1966
- Porter, D
- Porter, D. A.
- Porter, David
- Porter, David A
- Porter, David, 1780-1843
- Porter, Douglas
- Porter, Duncan
- Porter, Duncan M
- Porter, Duncan Macnair
- Porter, Gary
- Porter, Gene
- Porter, Gene Huntley.
- Porter, George William.
- Porter, H J
- Porter, H. C. (Hobart Charles).
- Porter, H. C., Mrs.
- Porter, Harold E
- Porter, Helen
- Porter, I J
- Porter, J
- Porter, J K
- Porter, J L
- Porter, J W
- Porter, J. D.
- Porter, J. Hampden
- Porter, J. M.
- Porter, J. Mark
- Porter, J. W.
- Porter, Jacob, 1783-1846
- Porter, James W
- Porter, Jennifer L
- Porter, Joanne
- Porter, John
- Porter, John
- Porter, John A. (John Addison), 1822-1866
- Porter, John Hampden.
- Porter, John N
- Porter, John, 1838-
- Porter, John, fl 1915-1929
- Porter, Joseph P.
- Porter, Joseph Y
- Porter, K R
- Porter, Katherine A
- Porter, Lawrence A.
- Porter, Mark
- Porter, Mark S.
- Porter, Megan L.
- Porter, Michael J.
- Porter, Mitchell
- Porter, Molly
- Porter, Pamela E.
- Porter, R
- Porter, R D
- Porter, R F
- Porter, R. H.
- Porter, R. H.,
- Porter, Richard
- Porter, Richard D
- Porter, Richard D.
- Porter, Robert
- Porter, Robert Ker, Sir, 1777-1842
- Porter, Roger J
- Porter, Roy, 1946-
- Porter, Roy, 1946-2002
- Porter, Russell Williams, 1871-1949
- Porter, S D