- North Atlantic Treaty Organization.
- North Atlantic Treaty Organization. Scientific Affairs Division.
- North Australian Indigenous Land and Sea Alliance
- North Bend Nurseries.
- North Borneo.
- North Borneo. Forest Department.
- North Carolina Academy of Science.
- North Carolina Agricultural Experiment Station.
- North Carolina Agricultural Extension Service.
- North Carolina Biological Survey.
- North Carolina Bird Club.
- North Carolina Constitutional Commission.
- North Carolina Evergreen Co.
- North Carolina Expedition (1916)
- North Carolina Forestry Association.
- North Carolina Forestry Association. Convention Raleigh, N.C.) 1912-
- North Carolina Humane Federation.
- North Carolina Natural Heritage Program.
- North Carolina Pecan Growers Society.
- North Carolina State College.
- North Carolina State College. Agricultural Extension Service.
- North Carolina State Horticultural Society. Experimental Farm.
- North Carolina State Museum of Natural History.
- North Carolina State Museum of Natural Sciences.
- North Carolina State University.
- North Carolina Wildlife Resources Commission.
- North Carolina.
- North Carolina. Agriculture, Forestry, and Seafood Awareness Study Commission.
- North Carolina. Board of Agriculture, Immigration and Statistics.
- North Carolina. Board of agriculture.
- North Carolina. Board of Agriculture.
- North Carolina. Coastal Energy Impact Program.
- North Carolina. Committee to Study Fisheries.
- North Carolina. Department of Agriculture.
- North Carolina. Department of Natural and Economic Resources.
- North Carolina. Dept. of Agriculture.
- North Carolina. Dept. of agriculture.
- North Carolina. Dept. of agriculture. Biological division.
- North Carolina. Dept. of Conservation and Development.
- North Carolina. Dept. of public instruction.
- North Carolina. Division of Community Planning.
- North Carolina. Division of Forestry and Parks.
- North Carolina. Division of Forestry.
- North Carolina. Division of Marine Fisheries.
- North Carolina. Division of Mineral Resources.
- North Carolina. Division of Parks and Recreation.
- North Carolina. Division of State Parks.
- North Carolina. Environmental Review Commission.
- North Carolina. Fisheries commission board.
- North Carolina. Forest Practices Act Study Committee.
- North Carolina. General Assembly.
- North Carolina. General Assembly. Agriculture, Forestry, and Seafood Awareness Study Commission.
- North Carolina. General Assembly. Environmental Review Commission.
- North Carolina. General Assembly. Legislative Research Commission.
- North Carolina. General Assembly. Legislative Research Commission. Committee to Study Fisheries.
- North Carolina. General Assembly. Legislative Services Commission.
- North Carolina. General Statutes Commission.
- North Carolina. Geological and economic survey.
- North Carolina. Geological Survey, 1852-1863.
- North Carolina. Governor (1874-1877 : Brogden)
- North Carolina. Marine Fisheries Commission
- North Carolina. Office of Natural Resources Planning and Assessment.
- North Carolina. School for the Blind and Deaf.
- North Carolina. State Geologist.
- North Carolina. Trustees of the Public Libraries.
- North Carolina. Trustees of the public libraries.
- North Central Forest Experiment Station (Grand Rapids, Minn.)
- North Central Forest Experiment Station (Saint Paul, Minn.)
- North Central Forest Experiment Station (Saint Paul, Minn.). Institute of Forest Genetics.
- North Central States Regional Conference Of Extension Foresters Allerton, Ill.) 1950-
- North China Branch Of The Royal Asiatic Society.
- North Dakota Agricultural College.
- North Dakota Agricultural Experiment Station (Fargo)
- North Dakota State University. Department of Zoology.
- North Dakota Water Resources Research Institute.
- North Dakota.
- North Dakota. Department of Agriculture and Labor.
- North Dakota. Dept. of Public Instruction.
- North Dakota. Pittman-Robertson Division.
- North Dakota. State Game and Fish Department.
- North Dakota. State Livestock Sanitary Board.
- North Jersey Nurseries.
- North Lanark Farmers' Institute.
- North London School of Medicine.
- North Main Street Nursery.
- North Mehoopany Gladiolus Gardens.
- North Michigan Nursery.
- North of England Institute of Mining and Mechanical Engineers
- North of England Institute of Mining and Mechanical Engineers.
- North Pacific Exploring Expedition, 1853-1856
- North Pacific exploring expedition.
- North Platte Floral Co. and Nurseries.
- North Platte Floral Company and Nurseries.
- North Queensland Naturalists' Club.
- North River Farms.
- North Sacramento Nurseries.
- North Staffordshire Field Club.
- North Star Nursery Co.
- North Star Nursery Company.
- North Star Seed Farms.
- North State Nursery Co.
- North Street Greenhouses,
- North West Company.
- North Western Seed Co.
- North Wichert Gardens.
- North Wisconsin Seed Co.
- North, Alfred J. (Alfred John), 1855-1917
- North, Barbara B
- North, Charles Edward, 1869-
- North, D J
- North, Ernest
- North, F
- North, F.,
- North, Frederick, Lord, 1732-1792
- North, George W
- North, Jeannette P.
- North, M. E. W.
- North, Malcolm
- North, Marianne, 1830-1890
- North, Michael R
- North, Nelson L. (Nelson Luther), 1830-
- North, Norman R.
- North, Roger, 1653-1734
- North, Tom
- North, Wheeler J
- North, William Henry John, 1836-1932
- North., Alfred John
- Northboro Dahlia and Gladiolus Gardens.
- Northbrook Dahlia Gardens,
- Northbrook Gardens.
- Northcliffe, Alfred Harmsworth, Viscount, 1865-1922
- Northcote, E M
- Northcote, E Marjorie
- Northcote, Rosalind, 1873-1950
- Northcott, Tom H.
- Northcutt, R. Glenn.
- North-East Agricultural Society.
- Northeast Fisheries Center (U.S.)
- Northeast Fisheries Science Center (U.S.)
- Northeast Regional Plant Introduction Station (Geneva, N.Y.)
- Northeast Utilities Service Company.
- Northeast Utilities Service Company. Environmental Laboratory.
- Northeastern Forest Experiment Station (Broomall, Pa.)
- Northeastern Forest Experiment Station (Radnor, Pa.)
- Northeastern Forest Soils Conference.
- North-eastern Forestry Co.
- Northeastern Forestry Committee. Forest Insects Subcommittee RP 2.03.
- North-Eastern Forestry Company.
- Northend, Mary Harrod, 1850-1926
- Northern Alberta Development Council.
- Northern Arizona Audubon Society.
- Northern Arizona University.
- Northern Arizona University. Ecological Restoration Institute.
- Northern Arizona University. School of Forestry.
- Northern California Botanists.
- Northern California Malacozoological Club.
- Northern Colorado Nursery Company.
- Northern Crop Science Laboratory (U.S.)
- Northern Field Seed Co.
- Northern Forest Experiment Station (Juneau, Alaska)
- Northern Forest Experiment Station (Juneau, Alaska).
- Northern Forest Experiment Station.
- Northern Gulf of Mexico Environmental Studies Planning Workshop New Orleans, La.) 1989-
- Northern Indiana Seed Co.
- Northern Iowa Gladiolus Gardens.
- Northern Lights Gardens.
- Northern Lights, Inc.
- Northern Nursery Co.
- Northern Nursery Co. (Denver, Colo.)
- Northern Nursery Co. (Ipswich, S.D.)
- Northern Nursery Co. (Traer, Iowa)
- Northern Nursery Company (Ipswich, S.D.)
- Northern Nut Growers Association.
- Northern Nut Tree Nursery.
- Northern Pacific Railway Company.
- Northern Plains Governors' Conference Rapid City, S.D.) 1992-
- Northern Plains Soil and Water Research Center (U.S.)
- Northern Rocky Mountain Forest and Range Experiment Station (Missoula, Mont.)
- Northern Rocky Mountain Science Center.
- Northern Rocky Mountain Wolf Recovery Team.
- Northern Rocky Mt. Native Evergreens.
- Northern Seed & Nursery Company.
- Northern Seed Co. (Valley City, N.D.)
- Northern Seed Company (Sheridan, Wyo.)
- Northern Seed Company (Sheridan, Wyoming),
- Northern Seed Company.
- Northern Spotted Owl Recovery Team.
- Northern Territory Field Naturalists' Club
- Northern Territory Museum of Arts and Sciences
- Northern Territory. Dept. of Transport and Works
- Northern Territory. Division of Agriculture and Stock.
- Northern Territory. Division of Primary Industry.
- Northern Virginia Nursery,
- Northern, James R
- Northern, Tamara
- North-Grove Fruit Farm and Gardens.
- Northington, D
- Northington, David K.
- Northland, Irma
- Northland-Leppe, Irma
- Northmore Nursery Company, Inc.
- Northport Nurseries.
- Northrop, Alice R
- Northrop, Alice Rich, 1864-1922
- Northrop, Amanda
- Northrop, Birdsey Grant, 1817-1898
- Northrop, Henry Davenport, 1836-1909
- Northrop, John Howard, 1891-
- Northrop, John I
- Northrop, John I, 1861-1891
- Northrop, John I., 1861-1891
- Northrop, R B
- Northrop, Robert B
- Northrup King & Co.
- Northrup King Co.
- Northrup, A. Judd (Ansel Judd), 1833-1919
- Northrup, B. G. (Birdsey Grant), 1817-1898
- Northrup, John Isaiah, 1861-1891
- Northrup, King & co., Minneapolis.
- Northstrom, T E
- Northumberland Sea Fisheries Committee.
- Northup, Flora E
- Northup, George H.
- Northwest and Alaska Fisheries Center (U.S.). Resource Ecology and Fisheries Management Division.
- Northwest Angora Goat Association.
- Northwest Bulb Co.
- Northwest Fruit Growers' Association.
- Northwest Horticultural Society.
- North-west mills company, Winona, Minn.
- Northwest Mining Association (U.S.)
- Northwest Nursery Co.
- Northwest Nursery Company.
- Northwest Nursery.
- Northwest Ornamental Horticultural Society
- Northwest Power Planning Council (U.S.)
- Northwest Resource Information Center.
- Northwest Seed Company.
- Northwest Territories. Department of Information.
- Northwest Territories. Wildlife Service.
- Northwestern Energy (Firm),
- Northwestern Grown Seeds.
- Northwestern medicine co., Keokuk, Iowa.
- North-Western Nurseries.
- Northwestern Nursery.
- Northwood Nurseries.
- Northwood, C
- Norton Gardens.
- Norton Mary E.B.
- Norton Plant Shop
- Norton, A H