- Penard, Frederik Paul
- Penard, M Eug
- Penard, T E
- Penariol, Leiza
- Peñas, Anselmo
- Peñas, Ingrid Vega
- Penas, Linda M
- Peña-Salamanca, Enrique J
- Peña-Salamanca, Enrique Javier
- Peña-Sánchez, Yadira Arlet
- Peña-Santiago, Reyes
- Peña-Santiago, Reyes
- Penati, Fabio
- Peña-Venegas, Clara Patricia
- Peña-Villalobos, Isaac
- Penca, Cory
- Pence, D B
- Pence, Danny B.
- Pence, R J
- Pence, Valerie C
- Pence, William E
- Penchaszadeh, Pablo E.
- Pencheva, Aneliya
- Pencheva, T
- Penck, Albrecht, 1858-1945
- Penco, A M
- Pender, T. R.
- Pendergast, James F.
- Pendergrast, J G
- Pendergrast, Mick
- Pendharkar, Anand
- Pendlebury, George B.
- Pendleton farmers' society. Committee on history.
- Pendleton, Burton K
- Pendleton, G W
- Pendleton, Grey W
- Pendleton, Isabella
- Pendleton, Lorann S. A.
- Pendleton, Robert C
- Pendleton, Robert Larimore, 1890-
- Pendleton, Rosemary L
- Pendleton, Rosemary Laycock, 1955-
- Pendleton's Lithography,
- Pendleton's Lithography.
- Pendley, L. C.
- Pendoley, K
- Pendoley, Kellie
- Pendrey, Robert C
- Pendry, C A
- Pendry, Colin
- Pendu, Yvonnick Le
- Pene, Sarah
- Péneau, J.
- Penecke, K
- Penecke, Karl Alphons Borromäus Josef
- Peneston, William T.
- Penev, Lyubomir
- Peneva, Vlada
- Penfold, Arthur De Ramon Arthur De Ramon Penfold 1890-1980
- Penfold, Richard Lee
- Penford, Nicola
- peng xun zhuan xiu 彭洵纂修
- Peng, Chen
- Peng, Cheng
- Peng, Ching-I
- Peng, Ching-I
- Peng, Fan
- Peng, Fang
- Peng, Heon Sui
- Peng, Hua
- Peng, Jia-Hua
- Peng, Jianghua, 1965-
- Peng, Jie
- Peng, Jing-Yi
- Peng, Junwei
- Peng, Kah W.
- Peng, Lang
- Peng, Lei
- Peng, Lifang
- Peng, Lingfei
- Peng, Peihao
- Peng, Renhai
- Peng, Shaolin
- Peng, Tao
- Peng, Ting
- Peng, Tong Xu
- Peng, Wanxiao
- Peng, Wei-Hong
- Peng, Weijun
- Peng, Xianjin
- Peng, Xian-Jin
- Peng, Xiao-Ming
- Peng, Xing-Can
- Peng, Yan-Qiong
- Peng, Yu
- Peng, Yuanyuan
- Peng, Yulan
- Peng, Yu-Lan
- Peng, Yu-Mei
- Peng, Yunfei
- peng, zexiang
- Peng, Zhong
- Peng, Zi-Jia
- Peng, Zuogang
- Pengart, Margaret Scobie
- Pengart, Raymond Nelson
- Pengelley, E T
- Pengelly, D H
- Pengelly, Ian
- Pengelly, Jasper J L
- Pengelly, Russell
- Pengelly, William
- Pengilley, R
- Pengilley, R K
- Penha Gomes, Itala da
- Penha, Alessandra dos Santos
- Penha, J.
- Penha, J. M.
- Penha, J. M. F.
- Penha, Jerry
- Penha, Jerry M. F.
- Penha, Jerry Magno Ferreira
- Penha, JMF.
- Penha, Túlio Luiz Laitano
- Penhacek, M.
- Penhalber, Elizabeth de F.
- Penhallow, D. P. (David Pearce), 1854-1910
- Penhallow, Sarah
- Penhallurick, John
- Penhallurick, John M
- Peniche, Carlos
- Penido, Alexandre Batista
- Penido, G.
- Penido, Gabriel
- Penin, Rumen
- Peninsula Field Naturalists' Club
- Peninsular Bulb Company,
- Peninsular Exhibition Chatham, Ont.). 1888-
- Peniston, Annie
- Penitente, Manolo
- Penkal, Russell F.
- Penland Flower and Nursery Company.
- Penland, C William
- Penland, C William T
- Penland, Charles William Theodore,
- Penllyn Nurseries.
- Penman, S
- Penn, D
- Penn, George Henry, 1918-1963
- Penn, Granville, 1761-1844
- Penn, Ian E
- Penn, J
- Penn, M
- Penn, Malcolm
- Penn, Truman A.,
- Penn, W.A.
- Penn, Wesley
- Penna Soares Santos, Lucas
- Penna, A
- Penna, Belisario
- Penna, Ian
- Penna, M. A. H
- Penna, Mario
- Penna, N T
- Penna, Oswino
- Penna, Oswino Alvares
- Pennachetti, Catherine A
- Penna-Firme, V
- Penna-Gonçalves, Vanessa
- Pennak, Robert W. (Robert William)
- Pennant, Claud Douglas.
- Pennant, David.
- Pennant, Thomas, 1726-1798
- Pennebaker, G. B.
- Pennebaker, G. W.
- Pennell, A L
- Pennell, Elizabeth S.
- Pennell, Francis W. (Francis Whittier), 1886-1952
- Pennell, Hannah S.
- Pennell, Nathan Adam, 1971-
- Pennell, Review By: Francis W
- Penner, David F.
- Penner, Johannes
- Penner, Lawrence R
- Penner, Rodney
- Pennesi, Riccardo
- Penney, B K
- Penney, Brian K
- Penney, C
- Penney, C C
- Penney, David, 1968-
- Penney, Heather
- Penney, J T
- Penney, James T
- Penneys, Darin
- Penneys, Darin S
- Pennholm Farms,
- Penniman, T. K. (Thomas Kenneth), 1895-
- Penning, William Henry, 1838-1902
- Pennings, Steven C.
- Pennington, Arthur S. (Arthur Stuart)
- Pennington, B A
- Pennington, Catherine E.
- Pennington, David Rodney Leonel
- Pennington, David Rodney Lionel
- Pennington, J T
- Pennington, J Timothy
- Pennington, M. E. (Mary Engle), 1872-1952
- Pennington, Mike.
- Pennington, N S
- Pennington, R T
- Pennington, Rooke
- Pennington, T. D.
- Pennington, W
- Pennock, C. J.
- Pennock, Charles J.,
- Pennock, Chas. E.
- Pennock, Edward
- Pennsylvania Agricultural Society.
- Pennsylvania Association For Sustainable Agriculture.
- Pennsylvania Biological Survey
- Pennsylvania Chestnut Blight Conference Harrisburg) 1912-
- Pennsylvania Chestnut Blight Conference Harrisburg, Pa.) 1912-
- Pennsylvania Chestnut Tree Blight Commission.
- Pennsylvania College. Linnaean Association.
- Pennsylvania Fish Commission.
- Pennsylvania Forestry Association.
- Pennsylvania Fruit Growers Society.
- Pennsylvania Game Commission.
- Pennsylvania Horticultural Society.
- Pennsylvania Horticultural Society. Library.
- Pennsylvania Lawn Mower Works (Philadelphia, Pa.)
- Pennsylvania Lines West of Pittsburgh. Freight Dept.
- Pennsylvania Nursery Co.
- Pennsylvania Nursery Company.
- Pennsylvania Power & Light Company. Madison Fisheries Technical Advisory Committee.
- Pennsylvania Power & Light Company. Montana. Madison Fisheries Technical Advisory Committee.
- Pennsylvania railroad company.
- Pennsylvania Railroad. Freight Dept.
- Pennsylvania Society for Promoting the Culture of the Mulberry Tree and the Raising of Silk Worms.
- Pennsylvania State College.
- Pennsylvania State College. Agricultural Experiment Station.
- Pennsylvania State University.
- Pennsylvania State University. Biophysics Dept.
- Pennsylvania State University. Cooperative Extension.
- Pennsylvania Vegetable Growers' Association.
- Pennsylvania.
- Pennsylvania. Board of Commissioners for the Second Geological Survey.
- Pennsylvania. Board of Fish Commissioners.
- Pennsylvania. Bureau of Forestry.