- Downing, Mary H.
- Downing, S. C. (Stuart Chalmers), 1911-
- Downing, Seth W.
- Downing, Stuart C.
- Downing, T A
- Downs Dahlia Farms (Clayton, N.J.)
- Downs Dahlia Farms.
- Downs Seed & Grain Company.
- Downs, Alexander Jr.
- Downs, Colleen T
- Downs, Cornelia M. 1892-1987
- Downs, Kevin D
- Downs, R J
- Downs, Robert J
- Downs, Robert Jack, 1923-
- Downs, S. H.
- Downs, Theodore
- Downs, Will.
- Downs, William G. Jr. (Wm. G.)
- Downs, William R
- Dow's Nursery.
- Dows, Azro M.
- Dowse, H B
- Dowse, H Burgess
- Dowse, J E
- Dowsett, Claire
- Dowsett, Robert J
- Dowsett-Lemaire, F
- Dowsett-Lemaire, Françoise
- Dowsley, Martha
- Dowson, Alfred C.
- Dowson, John
- Dowson, W. J.
- Dowton, Mark
- Doxsee, Ruth S.,
- Doyal, Parmesrwar
- Doycheva, Iva
- Doyel, Bernice E
- Doyen, Denise
- Doyen, E.
- Doyen, J T
- Doyen, John T
- Doyer, Lucie Christina, 1883-
- Doyère, L. (Louis) 1811-1863
- Doyle , Katherine L.
- Doyle, Adrian
- Doyle, C. B. (Conrad Bartling), 1884-1973
- Doyle, Chantelle
- Doyle, D D
- Doyle, D. J.
- Doyle, David M.
- Doyle, E N
- Doyle, Erin
- Doyle, F I
- Doyle, Frank I.
- Doyle, Gane
- Doyle, Gerald A
- Doyle, Glenn
- Doyle, J A
- Doyle, J C
- Doyle, J.
- Doyle, James A
- Doyle, Joseph
- Doyle, June
- Doyle, Martin, 1787?-1875
- Doyle, P
- Doyle, Paul
- Doyle, Peter
- Doyle, R W
- Doyle, Robert D
- Doyle, T J
- Doyle, Thomas R.
- Doyle, Timothy C., 1943-
- Doyle, W T
- Doyle, William L
- Doyle, William T
- Doyle, Wm. H.
- D'Oyly, George, 1778-1846
- Doyon, Dominique
- Doza, Hilda Paulette Davila
- Dozier, Herbert L. (Herbert Lawrence), 1895-
- Dozsa-Farkas, Klara
- Dozy, F. (Frans), 1807-1856
- Dr. A.C. Daniels (Inc.)
- Dr. B.J. Kendall & Cie.
- Dr. B.J. Kendall & Co.
- Dr. D. R. Miller and H. A. Puffer (Firm)
- Dr. E.S. Landess (Firm)
- Dr. H.H. Smith (Firm)
- Dr. Hess & Clark (Firm)
- Dr. J.A. Clausen (Firm)
- Dr. Keefe's Blueberry Plantations Inc.
- Dr. Thimlar Nursery.
- Drabent, Birgit
- Drabkova, Lucie
- Dracopoli, I. N.
- Dracopoli, Ignatius Nicolas, 1887-
- Draege, Mathilde
- Draeger, Carol. Bernhard.
- Draeseke, J
- Dragan, Ovidiu
- Dragani, Walter C
- Drage, Bert, 1867-
- Dragendorff, G. (Georg), 1836-1898
- Dragesco, Jean
- Draghi, A
- Draghi, Regina
- Draghi, W
- Dragic, Velimir
- Dragičević, Paula
- Dragnewitsch, P
- Drago, Edmundo C.
- Drago, Fabiana
- Drago, Fabiana B.
- Drago, Fabiana Beatriz
- Dragon, D. C.
- Dragoo, Don. W. 1925-1988
- Dragoo, Jerry W
- Dragovich, A
- Dragovich, Alexander
- Dragovich, Deirdre
- Draheim, Greg S.
- Draheim, R
- Drahn, Fritz
- Drahn, Richard.
- Drahokoupilová, Táňa
- Draime Bros.
- Draime Brothers Nursery.
- Draime Brothers.
- Drain, James A.
- Drake del Castillo, E. (Emmanuel), 1855-1904
- Drake, C
- Drake, C M
- Drake, C Martin
- Drake, Carl J. (Carl John) 1885-1965
- Drake, Carrie
- Drake, Cliff
- Drake, Daniel, 1785-1852
- Drake, David A.
- Drake, E. B.
- Drake, Elizabeth Bessie Bright.
- Drake, F R
- Drake, Gustaf
- Drake, J. A.
- Drake, J. A. (J. Allen), 1875-
- Drake, James C.
- Drake, John E
- Drake, K. Kristina.
- Drake, Lawrence
- Drake, Louis F.
- Drake, Noah Fields
- Drake, Robert J
- Drake, Sarah Ann 1803-1857
- Drake, Sarah Anne, 1803-1857
- Drake-Brockman, Ralph Evelyn, 1875-
- Drakulic, Jassy
- Dral, A D G
- Dralet, M. (Etienne François), 1754-1844
- Drane and Company.
- Drane, N T
- Drane, Shelia
- Draney, Michael L
- Dranga, T
- Dransfield, J
- Dransfield, John
- Dransfield, S
- Dranzoa, C
- Dranzoa, Christine
- Draparnaud, J. (Jacques), 1772-1805
- Drapeau, Pierre
- Drapeau, Raynald.
- Draper, Andrew Sloan, 1848-
- Draper, B C
- Draper, Eardley H. U.
- Draper, H. H. (Harold Hugh), 1924-
- Draper, Henry
- Draper, Henry, 1837-1882
- Draper, James, 1842-1907
- Draper, James.
- Draper, John C
- Draper, John W
- Draper, John William, 1811-1882
- Draper, Julie V
- Draper, Lyman Copeland, 1815-1891
- Draper, Martin Alan.
- Draper, Trent M
- Draper, W. F. (Warren Fales), 1883-
- Draper, Walter.
- Drapiez, Pierre Auguste Joseph, 1778-1856
- Drasche-Wartenberg, Richard, Freiherr von, 1850-1923
- Dräseke, J
- Dräseke, J.
- Drasen, S
- Draudt, Max
- Draycott, Ada Apgar.
- Draycott, Walter MacKay 1883-1985
- Drayson, Alfred Wilks, 1827-1901
- Drayton, B
- Drayton, Brian
- Drayton, F. L.
- Drayton, J. B.,
- Drayton, Joseph
- Drayton, Joseph,
- Drea, J J
- Dreamerie Gardens.
- Drechsel, C
- Drechsel, Ulf
- Drechsler, Adolph, 1815-1888
- Drechsler, Charles
- Drechsler, Robby M
- Drechsler-Santos, Elisandro R.
- Drechsler-Santos, Elisandro Ricardo
- Dreckmann, F
- Dreckmann, K
- Dreckmann, K M
- Dreckmann, Kurt M.
- Drecktrah, H G
- Dredge, M C L
- Dreer, Henry A.
- Dreer, Henry A. 1818-1873
- Dreer, Henry A. (Firm)
- Drees, Claudia
- Dreese, Lee Luckeydoo
- Drège, Jean F.
- Drège, Jean François, 1794-1881
- Drehmer, Cesar Jaeger
- Drehmer, César Jaeger
- Dreier, Cody A.,
- Dreis' Old Reliable Seed House.
- Dreis, Thelma.
- Dreisbach, R R
- Dreisonstok, Joseph Young, 1889-
- Dreistadt, S H
- Dreistadt, Steve H
- Dreitz, Victoria J
- Dreitzler, M. S.,
- Drejer, Salomon Thomas Nicolai, 1813-1842
- Drelincourt, Charles, 1633-1697
- Dremel, Günther
- Drenkhan, Rein
- Drenkhan, Tiia
- Drennan, Arthur Paul.
- Drennan, J E
- Drennan, M. R. (Matthew Robertson), 1885-
- Drennan, Regan
- Drennan, Robert D.
- Drenowsky, Al K
- Drensky, P
- Drent, R. H. 1937-2008
- Drenth, Andre