- Coloma, Cecilia
- Coloma, Luis A.
- Colomb, F. Raul
- Colomb, Georges, 1856-1945
- Colomb, Herbert Palfrey.
- Colomb, Jacques
- Colomba, Mariastella
- Colomba, Mariestella
- Colombari, Fernanda
- Colombari, Paolo
- Colombe, Lodovico Delle, fl 1612-
- Colombelli, B
- Colombetti, Patricia L.
- Colombi, Evandro Emanoel
- Colombia (Republic of Colombia). Junta central de higiene.
- Colombia.
- Colombia. Congreso.
- Colombia. Congreso. Cámara de Representantes.
- Colombia. Congreso. Senado.
- Colombina, Gasparo
- Colombo Ferreguetti, Átilla
- Colombo Market Seed Co.
- Colombo Museum
- Colombo, AF.
- Colombo, Carlos Augusto
- Colombo, E. M.
- Colombo, Julia
- Colombo, Martín Alejandro
- Colombo, Michele, 1747-1838
- Colombo, Nicola
- Colombo, Patrick
- Colombo, R. C.
- Colombo, Roxana
- Colombo, The Lord Bishop Of
- Colombo, Valeria Carolina
- Colombo, Wesley D.
- Colombo-Corbi, Vanessa
- Colomeadow Farms
- Colomer Mendoza, Francisco José
- Colomeu, Talita Cristina
- Colomo, María V.
- Colón, Pablo Clemente
- Colona-Vallejos, Erasmo
- Colonello, Jorge H
- Colonial and Indian Exhibition London, England) 1886-
- Colonial and Indian Exhibition London, England). 1886-
- Colonial Bacteriological Institute.
- Colonial Farms.
- Colonial Gardens (Gladwyne, Pa.)
- Colonial Gardens (Marion, Ohio)
- Colonial Gardens (Rushford, Minn.)
- Colonial Gardens.
- Colonial Herbarium (Durban, South Africa)
- Colonial Herbarium (Durban, South Africa).
- Colonial Museum (N.Z.)
- Colonial Works, Inc.
- Colonizationist, pseud.
- Colonna Ribeiro, Isael
- Colonna, Fabio, 1567-1650
- Colonna, Francesco Maria Pompeo
- Colonna, Maria Antonietta
- Colonna, Marian
- Colonnelli, E
- Colonnelli, Enzo
- Colonnello, Giuseppe
- Colón-Quezada, David
- Colony, Roy Jed, 1870-1936
- Colorado A & M College.
- Colorado Agricultural Experiment Station
- Colorado Agricultural Experiment Station.
- Colorado Association of Soil Conservation Districts.
- Colorado Biological Association.
- Colorado College Scientific Society.
- Colorado College.
- Colorado education association.
- Colorado Forestry and Horticultural Association.
- Colorado Forestry and Horticulture Association.
- Colorado Gardens and Nurseries.
- Colorado Gardens.
- Colorado Geological Survey.
- Colorado Native Plant Society.
- Colorado Natural Heritage Program.
- Colorado Nursery Co.
- Colorado Nursery Co.,
- Colorado Nursery Company.
- Colorado Scientific Society.
- Colorado Seed and Nursery Company.
- Colorado Seed Company.
- Colorado Seed Company. Florists' Supply Department.
- Colorado Seed House.
- Colorado State Forestry Association.
- Colorado State University.
- Colorado State University. Natural Resource Ecology Laboratory.
- Colorado State University. Range Science Department.
- Colorado Wildlife Federation.
- Colorado.
- Colorado. Dept. of Forestry, Game and Fish.
- Colorado. Division of Wildlife.
- Colorado. Division of Wildlife. Gunnison District.
- Colorado. Fish Management Division.
- Colorado. Fisheries Management Division.
- Colorado. Game and Fish Department.
- Colorado. Game and Fish Department. Federal Aid Division.
- Colorado. Game, Fish, and Parks Department.
- Colorado. Horticultural Dept.
- Colorado. State racing commission.
- Colorado. State university, Fort Collins.
- Colorado. State University, Fort Collins. Horticultural Dept.
- Colosi, Giuseppe, 1892-1975
- Colotti, María T
- Colou, Justine
- Colozza, Francesca
- Colozzi Filho, Arnaldo
- Colpani, Daniara
- Colpini, Chirle
- Colpitts, Donald W.
- Colprit, Ernest S.
- Colprit's Nursery.
- Colque, Fredy
- Colquhoun, G P
- Colquhoun, I J
- Colquhoun, John, 1805-1885
- Colson, Charles, 1839-1915
- Colston Research Society.
- Colston, Peter
- Colston, Timothy
- Colston, Timothy J.
- Colt, John E
- Colt, LeBaron C., Jr.
- Colt, Tamara
- Coltharp, Erin
- Coltharp, George B.
- Colthurst, K.
- Coltman-Rogers, Charles, 1854-
- Colt-McLoughlin Co.
- Colton, A M
- Colton, Buel P. (Buel Preston), 1852-1906
- Colton, Harold Sellers, 1881-1970
- Colton, John B.
- Colton, Marie C.
- Colton, Samuel Horton, 1804-1875
- Coltri, Furio
- Coltro, José
- Columbia & Okanogan Nursery Co.
- Columbia Basin Nursery.
- Columbia Basin Task Force.
- Columbia Broadcasting System, inc.
- Columbia College (New York, N.Y.). Herbarium.
- Columbia College (New York, N.Y.). Library.
- Columbia College (New York, N.Y.). School of Mines. Library.
- Columbia Floral & Seed Company.
- Columbia Gardens (Cedarburg, Wis.)
- Columbia Nursery (Portland, Or.)
- Columbia Nursery Company (Portland, Or.)
- Columbia Nursery.
- Columbia Planograph Co.
- Columbia University
- Columbia University Biochemical Association.
- Columbia University. College of Pharmacy.
- Columbia University. College of Pharmacy. Alumni Association.
- Columbia University. Council for research in the social sciences.
- Columbia University. Department of Botany
- Columbia University. Dept. of Bacteriology.
- Columbia University. Division of War Research.
- Columbia University. Geological Dept.
- Columbia University. Hudson Laboratories.
- Columbia University-American Museum Of Natural History Expedition To Africa 1929-1931
- Columbia University-American Museum of Natural History Expedition to Africa (1929-1931)
- Columbia, Entomological Society Of British
- Columbia, Journal Of The Entomological Society Of British
- Columbian Grape Company.
- Columbian Horticultural Society, Washington, D.C.
- Columbian Strawberry Co.
- Columbus Flower Gardens.
- Columbus Nursery.
- Columbus Seed and Implement Company.
- Columbus, Christopher.
- Columbus, J. Travis
- Columella, Lucius Junius Moderatus.
- Colunga-Garcia, Manuel
- Colunga-Treviño Bernardo
- Colusi, Magdalena
- Colvero, Ricardo Dossa
- Colvile, Charles R.
- Colville, Anne E
- Colville, Arthur Edward William, 1857-1942
- Colville, B
- Colville, B.
- Colville, Barry
- Colville, James.
- Colville, Olivia Spencer-Churchill.
- Colvin, Auckland
- Colvin, Esther Marie, 1894-
- Colvin, I. M.
- Colvin, Irene B
- Colvin, J. R.,
- Colvin, Sidney, Sir, 1845-1927
- Colvin's Dahlia and Gladiolus Gardens.
- Colvin's Glad Gardens.
- Colvocoresses, George M. (George Musalas), 1816-1872
- Colvocoresses, George Musalas, 1816-1872
- Colwell, Alison E
- Colwell, Alison E L
- Colwell, Mark A
- Colwell, Rita R
- Colwell, Robert K
- Colwell, Traci
- Colwell, Wilmer L., Jr.
- Colwin, Arthur L
- Colwin, Laura Hunter
- Colyer, Alison
- Colyer, John Ussher Cox
- Colyn, Marc
- Coma, John.
- Coma, R
- Comal Springs Nursery.
- Coman, Mihaela
- Comanche Nursery.
- Comandini, O
- Comandolli-Wyrepkowski Claudia Dantas
- Comanor, Joan M.
- Comanor, Peter L
- Comar, C. L. (Cyril Lewis), 1914-
- Comas González, Augusto A.
- Comas, Cecilia
- Comas, J
- Comas, Jordi
- Combe, Andrew, 1797-1847
- Combe, George, 1788-1858
- Combe, Mariela
- Combe, Thomas, 1797-1872
- Combe, William, 1742-1823
- Combee, Lynn
- Combee, Lynn A.
- Comben, Pat
- Comber, Jo
- Comber, Peter
- Combes, Claude
- Combes, Paul Fils
- Combes, Raoul, 1883-1964
- Combes, Vincent
- Combettes, S
- Combey, Rofela
- Combined Forest Pest Research and Development Program (U.S.)
- Combita, Orlando
- Combles, de, 1770-
- Comboni, D J
- Combosch, David
- Combreau, Olivier
- Combres, P