- Grateloup, Jean-Pierre Silvestre de, 1782-1862
- Gratiolet, L
- Gratiolet, Pierre, 1815-1865
- Gratkowski, H.
- Graton, Louis Caryl, 1880-
- Graton, Louis.
- Grat︠s︡īanov, V. I.
- Gratson, Michael W.
- Grattan, Thomas Colley, 1792-1864
- Grattann, W. H.
- Gratte, Stan
- Gratto-Trevor, Cheri Lynn, 1956-
- Gratwick, William.
- Gratwicke, Brian
- Gratz, Jons
- Gratzl, August
- Grau, Alfredo
- Grau, Gordon E
- Grau, H. Ricardo (Héctor Ricardo)
- Grau, José H
- Grau, Jürke, 1937-
- Grau, Rodrigo
- Grau, Susan M
- Graugaard, Jes
- Graul, Walter D
- Graul, Walther
- Graumüller, Johann Christian Friedrich, 1770-1824
- Graus, Matthias, ca1606-
- Graus, Richard R.
- Grausch, Wolf
- Grausius, M.
- Graustein, Jeannette E
- Grauvogel-Stamm, Léa
- Gravatt, Dennis A
- Grave, B. H. (Benjamin Harrison), 1878-1949
- Grave, Caswell, 1870-1944
- Grave, Charles W., active 1853-
- Gravel, Anne-Isabelle D
- Graveline, Paul G.
- Gravelot, Hubert François, 1699-1773
- Gravely, F. H.
- Gravena, Waleska
- Gravendeel, Barbara
- Gravener, K M
- Gravenhorst, J. L. C. (Johann Ludwig Christian), 1777-1857
- Gravens, Mark B.
- Gravereaux, Jules.
- Graves, Anne C F
- Graves, Arthur A
- Graves, Arthur H
- Graves, Arthur Harmount, 1879-1962
- Graves, Basil.
- Graves, Charles B.
- Graves, Charles Burr, 1860-1936
- Graves, Charles L.
- Graves, E. R.
- Graves, Edward Willis 1882-1936
- Graves, Frances M
- Graves, Gary R
- Graves, George
- Graves, George, 1754-1839
- Graves, George, 1777-1834
- Graves, H. S.
- Graves, Henry S. (Henry Solon), 1871-1951
- Graves, Hillary P
- Graves, J. A. (Jefferson A.), 1942-
- Graves, James A.
- Graves, James R.
- Graves, John E.
- Graves, John Nevil
- Graves, Leo,
- Graves, Lincoln
- Graves, Louis, 1791-1857
- Graves, Peggy L
- Graves, Philip P. (Philip Perceval), 1876-1953
- Graves, R. R.
- Graves, Review By: Arthur H
- Graves, Review By: Arthur Harmount
- Graves, Robert C
- Graves, Sara S,
- Graves, Selover and Willard's Washington Street Nurseries.
- Graves, Sonya E
- Graves, Tiffany A
- Graves, W. E. (William Elliott), 1874-
- Graves, Walter L.
- Graves, William R
- Graveson, William
- Gravestein, Willem Hendrik 1906-1989
- Gravet, Frédéric, 1827-1907
- Gravier, Ch. (Charles), 1865-1937
- Gravier-Bonnet, Nicole
- Gravieret, Ch
- Gravina, Amanda
- Gravina, Ma. Carola
- Gravis, Auguste, 1857-
- Gray & Cole (Firm)
- Gray Floral Company.
- Gray Herbarium
- Gray Herbarium Visiting Committee
- Gray Memorial Botanical Association.
- Gray Nurseries (Elverta, Calif.)
- Gray Seed Company.
- Gray, A F
- Gray, A. B. (Andrew Belcher), 1820-1862
- Gray, A. M. (Alan Maurice)
- Gray, Alan, 1968-
- Gray, Alice, 1914-1994
- Gray, Alonzo, 1808-1860
- Gray, Alvia G.
- Gray, Arthur F.
- Gray, Arthur, 1852-1940
- Gray, Asa, 1810-1888
- Gray, B
- Gray, B.
- Gray, B. (Bruce)
- Gray, B. B.
- Gray, Bessie, 1854-1925
- Gray, Betty
- Gray, C A M
- Gray, C M
- Gray, C W
- Gray, C. E.
- Gray, Carolyn Elizabeth, 1873-1938
- Gray, D R
- Gray, D. J. Thomson.
- Gray, D. S.
- Gray, Dan T.
- Gray, David
- Gray, David
- Gray, David A.
- Gray, David I
- Gray, David R.
- Gray, Don
- Gray, Donald H.
- Gray, E. K.
- Gray, E., fl 1837-
- Gray, Edward
- Gray, Elisha, 1835-1901
- Gray, Elizabeth M
- Gray, Elmer
- Gray, Emma Louise
- Gray, Eva Kenworthy.
- Gray, F. Edward.
- Gray, F. H.
- Gray, Fred W
- Gray, G. J. (George John), 1863-
- Gray, George M.
- Gray, George Putnam, 1877-1968
- Gray, George Robert
- Gray, George Robert, 1808-1872
- Gray, George Z.
- Gray, Gilbert
- Gray, H., Dr., active 1831-
- Gray, Harry C.
- Gray, Henry E.
- Gray, Henry, 1825-1861
- Gray, Howard Levi
- Gray, Irving E. (Irving Emery), 1897-1980
- Gray, J. R.
- Gray, James, Sir, 1891-1975
- Gray, Jane Loring, 1821-1909
- Gray, Jane, 1931-
- Gray, Jennifer A.
- Gray, John
- Gray, John C
- Gray, John Edward 1800-1875
- Gray, John G.
- Gray, John T
- Gray, John, 1920-
- Gray, John, fl 1846-
- Gray, John, bookseller active 1732-1742
- Gray, Joseph H.
- Gray, Joy
- Gray, Kenneth O.
- Gray, L. C. (Lewis Cecil), 1881-1952
- Gray, Levi
- Gray, Levi N
- Gray, Lincoln
- Gray, Lindsey
- Gray, Maria Emma, 1787-1876
- Gray, Marion
- Gray, Max
- Gray, Michael R.
- Gray, Myrtle Gooding.
- Gray, N., Mrs.
- Gray, Neil D
- Gray, Netta E. (Netta Elizabeth), 1913-1970
- Gray, O. P.
- Gray, Paul A.
- Gray, Percy Heath Hobart 1891-1971
- Gray, Peter
- Gray, Peter, 1908-
- Gray, R
- Gray, R K S
- Gray, Richard E
- Gray, Robert, 1825-1887
- Gray, Russell
- Gray, Sally E.
- Gray, Samuel Frederick, 1766-1828
- Gray, Samuel Octavus, 1828-1902
- Gray, Sprague & Co.,
- Gray, Thomas
- Gray, Thomas N E
- Gray, Thomas, 1716-1771
- Gray, Thomas, 1850-1908
- Gray, Tom G
- Gray, W. O.
- Gray, W. R.
- Gray, W. Scott, Jr.
- Gray, William Arthur Gordon, Rev. 1932
- Gray, William Cunningham, 1830-1901
- Gray, William D.
- Gray, William, Major
- Gray, Z.
- Graybill, H. W. (Harry Webster), 1875-1938
- Graybosch, Robert
- Grayce, Robert L
- Grayling, Peter M.
- Grays Harbor Regional Planning Commission (Wash.)
- Grays Harbor Regional Planning Commission (Washington (State)
- Grays' Nurseries (San Antonio, Tex.)
- Gray's Nursery.
- Grayson, Donald K.
- Grayson, Henry Joseph 1856-1918
- Grayson, James McDonald
- Grayson, Michelle B.
- Grayum, Michael Howard, 1949-
- Grazia, Jocélia
- Grazieli, Alanna
- Grazziotin, Felipe G.
- Grazzi-Soncini, G.
- Grbec, Branka
- Grbić, Gordana
- Grear, Jason S.
- Grear, John W
- Grearson, K J
- Greason, Tom.
- Great Barrier Reef Committee
- Great Barrier Reef Expedition
- Great Basin GEM Joint Venture (Firm)
- Great Britain.
- Great Britain. 1857 Jan 14-
- Great Britain. 1888-
- Great Britain. Admiralty
- Great Britain. Admiralty.
- Great Britain. Agricultural costings committee.
- Great Britain. Army Medical Department.
- Great Britain. Army Veterinary Dept.
- Great Britain. Colonial Office.
- Great Britain. Board of Agriculture.