- Peterson, Steven R.
- Peterson, Tanya L
- Peterson, Trevor S.
- Peterson, W. W.
- Peterson, William A.
- Peterson, William Harold, 1880-
- Peterson, William J.
- Peterson, William T.
- Peterson, Wm. A.
- Petersons, Gunars
- Petesse, ML.
- Peteva, Zlatina
- Peteva, Zlatina V.
- Peth & Duggan.
- Peth, Edward A.
- Pethe, Jui
- Pether, J
- Petheram, John
- Petherbridge, Frederick Robert.
- Petherick, Mrs. (Katherine Harriet Edlman), 1827-1877
- Petherick, Edwd. A.
- Petherick, John, 1813-1882
- Petherick, Lynda
- Pethick, D W
- Pethiyagoda, R
- Pethiyagoda, Rohan
- Pethybridge, G H
- Pethybridge, Stanley Ivor.
- Pétillon, Julien, 1979-
- Petini-Benelli, Adarilda
- Petit de la Saussaye, M.
- Petit de La Saussaye, Sauveur, 1792-1870
- Petit, Antoine, -1843
- Petit, D P
- Petit, Daniel
- Petit, Daniel R
- Petit, E
- Petit, Émile.
- Petit, Eric
- Petit, G
- Petit, Gilles
- Petit, J C
- Petit, Kenneth E
- Petit, Lisa J
- Petit, Louis.
- Petit, M G
- Petit, M. C.
- Petit, Nicolas Martin.
- Petit, Nicolas-Martin, 1777-1804
- Petit, Odile
- Petit, P
- Petit, Paul, 1834-1913
- Petit, Richard E
- Petit, Richard E.
- Petit, Sandrine
- Petit, Ted LaRue, 1949-
- Petit, Victor
- Petit, Victor, 1820?-1874
- Petit, Yohan
- Petitclerc, Frédéric
- Petitmaitre, Sigismundus.
- Petitmengin, M
- Petitmengin, Marcel
- Petitpierre, E
- Petitpierre, Eduard
- Petitprez, M
- Petitt, F L
- Petiver, James, 1663 or 1664-1718
- Petjukevics, Aleksandrs
- Petkeviciute, Romualda
- Petko, Olga
- Petkov, Krum
- Petkov, Peter
- Petkova, Krasimira
- Petkova, Mariana
- Petkova, Michaella
- Petkova, Nadezhda
- Petkova, R
- Petkova, Rumena
- Petkovski, S T
- Petney, T N
- Peto Seed Co.,
- Peto, Frank Herbert,
- Peto, H. B.,
- Peto, Howard Broadhurst.
- Peto, Howard, Dr.
- Peto-Hollar Co.,
- Petounnilkow, M
- Petr, Daniel
- Petr, Libor
- Petracchi, Cristian
- Petracci, Pablo F.
- Petraccioli, Agnese
- Petraglia, Alessandro
- Petraitis, P S
- Petraitis, Peter S
- Petraitis, Ps
- Petrak, Franz
- Petrakis, Byron, 1941-
- Petralia, Alfredo
- Petralia, Ettore
- Petralia, Ronald S
- Petranka, James W.
- Petrar, Brian J.
- Petras, Michael L.
- Petrasch, Joh.
- Petraschek, Karl Otto, 1876-
- Petrash, Nadezhda
- Petrašiūnas, Andrius
- Pétraz, Francisque.
- Petreanu, Ionuț-Cătălin
- Petrelli, Eugenio, active 17th century-
- Pétremand, Gaël
- Petren, Kenneth
- Petrere Júnior, Miguel, 1948-
- Petrescu, Ana-Maria
- Petrescu, Iorgu
- Petri, Detony José Calenzani
- Petri, Inés
- Petri, Ivan
- Petri, Johann, active 1485-1498
- Petri, Karl, 1852-1932
- Petri, Lais
- Petri, M
- Petri, Massimo
- Petri, Tabitha
- Petriccione, Bruno
- Petrice, Toby R.
- Petrice, Toby Ryan
- Petrich, Christian
- Petrick, F O
- Petrick-Ott, A J
- Petrides, George A
- Petrie Landscape Nurseries.
- Petrie, A H K
- Petrie, Arthur H K
- Petrie, David C.
- Petrie, E
- Petrie, Edward
- Petrie, J M
- Petrie, W. M. Flinders Sir, 1853-1942
- Petriella, Ana M
- Petriella, Ana M.
- Petriella, Ana Maria
- Petriella, Ana Maria
- Petriella, Ana María
- Petriglia, Bruno
- Petřík, Petr
- Petrik-Ott, Aleta Jo
- Petrillo, Mario
- Petrillo, Thalita R
- Petrin, Roumen
- Petrin, Rumen D.
- Petrina, Franz Adam
- Petrini, A. C.
- Petrini, L E
- Petrini, Liliane E.
- Petrini, O
- Petrini, Orlando
- Petrishchev, Evgeniy P.
- Petrocchi, Diego
- Petrocelli, Antonella
- Petrof, John Vasil, 1933-
- Petroff, Ivan, 1842-
- Petrogradskoe Obshchestvo Estestvoispytateleĭ.
- Petroianu, Y.
- Petronijević, Branislav, 1875-1954
- Petronio, C
- Petrontino, Alessandro
- Petropulos, Stephen F
- Petrosyan, Varos G.
- Petrov, Alexander
- Petrov, Boris
- Petrov, Boyan
- Petrov, Ivan
- Petrov, Konstantin
- Petrov, P. P. (Petr Petrovich), 1850-1928
- Petrov, Pyotr N
- Petrov, Rusko
- Petrova, Detelina
- Petrova, Gabriela
- Petrova, Maria
- Petrova, Ninel
- Petrova, Ventsislava
- Petrova, Ventsislava Yankova
- Petrova, Viara
- Petrova, Vyara
- Petrova, Yana
- Petrovan, Silviu O.,
- Petrović, Andjeljko
- Petrovic, Frantisek
- Petrović-Obradović, Olivera
- Petrovitz, R
- Petrovitz, Rudolf
- Petrovskaya, Anna
- Petrovskiy, Andrey B.
- Petrow, S
- Petrtýl, Miloslav
- Petrucci, BB
- Petrucio, M. M.
- Petrucio, Mauricio Mello
- Petrulaitis, Lukas
- Petrulevičius, Julián F.
- Petrunenko, Ekaterina
- Petrunina, Alexandra
- Petrunkevitch Expedition (1909)
- Petrunkevitch, Alexander, 1875-1964
- Petrus, de Abano, approximately 1250-approximately 1315
- Petrusek, Adam
- Petrussa, Elisa
- Petrus-Vancea, Adriana
- Petruzziello, Luigi
- Petry, A
- Petry, A. C.
- Petry, Albrecht
- Petry, Ana Cristina
- Petry, Ana Cristina
- Petry, Arthur August
- Petry, C. T.
- Petry, CT
- Petry, Fabiane
- Petry, Loren C
- Petry, M V
- Petry, M. V.
- Petry, Maria Virginia
- Petry, P.
- Petry, Paulo
- Petryszyn, Y
- Petryszyn, Yar.
- Petrželová, Irena
- Petsch, Danielle Katharine
- Petschenka, Georg
- Petsopoulos, Dimitrios
- Petsut, Jirawaeth
- Petsut, Nidsaraporn
- Pett, Brogan
- Pett, Brogan L.
- Pett, Lindsey
- Pett, Rohan
- Pett, Tristan J.
- Pettay, D. Tye
- Petter, A
- Petter, A J
- Petter, Annie
- Petter, Annie J
- Petter, F
- Petter, Francis
- Petter, Françoise
- Petter, G
- Petter, Germaine