- J. & C. Walker (Firm)
- J. & T. Adikes.
- J. & W. Grunow & Co.
- J. A. Clausen (Firm)
- J. A. De Veer (Firm)
- J. A. Everitt & Co.
- J. A. Ford (Firm)
- J. A. Kemp (Firm)
- J. A. Nelson & Son
- J. A. Ramsburg (Firm)
- J. A. Withrow (Firm)
- J. and C.F. Clay,
- J. and J. Bonwicke.
- J. B. Birch Nursery Co.
- J. B. Heiss (Firm)
- J. B. Hickman (Firm)
- J. B. Ivey & Company.
- J. B. Ivey and Co.
- J. B. Miller (Firm)
- J. B. Morey Nurseries.
- J. B. Savage (Firm)
- J. B. Sutton Company.
- J. B. Taylor (Firm)
- J. B. Wagner (Firm)
- J. B. Watkins & Brother (Midlothian, Va.)
- J. B. Watkins & Brother.
- J. Bagby & Sons Co.
- J. Barbezat et companie.
- J. Bolgiano & Son.
- J. C. Grossman and Wife.
- J. C. H. Sneed (Firm)
- J. C. Haile & Sons.
- J. C. Suffern (Firm)
- J. Chas. McCullough (Firm)
- J. Chas. McCullough Seed Co.
- J. Chas. McCullough Seed Company.
- J. Cook (Firm)
- J. D. Boring and Son.
- J. E. B. Stuart (Firm)
- J. E. Nickerson (Firm),
- J. E. Redden Nursery,
- J. E. Taylor and Co.,
- J. F. Cecil (Firm)
- J. F. Jones (Firm : Lancaster, Pa.)
- J. F. Miller & Sons.
- J. F. Norris (Nursery),
- J. F. Taylor & Son
- J. F. Tiedke (Firm)
- J. F. Vavrous Sons,
- J. Franklin Meehan & Sons, Inc.
- J. G.
- J. G. Peppard Seed Co.
- J. Gardiner & Co.
- J. H. Bowman (Firm)
- J. H. Cobb & Co. (Firm)
- J. H. Hale (Firm)
- J. H. Kirkland (Nursery)
- J. H. Petty (Firm)
- J. H. Settlemier & Son.
- J. H. Small & Sons.
- J. H. Small and Sons.
- J. H. Wheeler (Firm)
- J. H. Wheeler (Firm), Hood River, Oregon
- J. Hendriks,
- J. Herbert Alexander (Firm)
- J. Herbert Alexander Dahlia Gardens.
- J. Horace McFarland Company.
- J. Howard French (Firm),
- J. J. Bliek and Sons.
- J. J. Bonnell Nurseries.
- J. J. Butzer (Firm)
- J. J. LaMontagne and Son.
- J. J. Nudd (Firm)
- J. J. Wilson Seed Co.
- J. Jenkins & Son.
- J. Jenkins & Son's Nurseries.
- J. Jenkins Nurseries.
- J. Jenkins' Nurseries.
- J. Jerome Smith (Firm)
- J. Keifford Hall (Firm)
- J. Kenneth Douglas (Firm),
- J. Knox (Nursery)
- J. L. Callaghan (Firm)
- J. L. Hawk & L. E. Hawk.
- J. L. Normand (Firm)
- J. L. Schiller (Firm)
- J. Lafabregue (Firm)
- J. Ledlie Gloninger (Firm)
- J. M. Bassett (Firm)
- J. M. Dickinson (Firm)
- J. M. Edwards & Son.
- J. M. Edwards, Son & Co.
- J. M. McCullough's Sons.
- J. M. Ogle (Firm)
- J. M. Philips and Sons.
- J. M. Philips' Sons.
- J. M. Thompson & Son.
- J. M. Thompson (Firm)
- J. Manns & Co.
- J. Marion Shull (Firm)
- J. Marvin Miller (Firm)
- J. Meriwether (Firm)
- J. Murray Bassett (Firm)
- J. N. Dougan & Son.
- J. O. Brown (Firm),
- J. O. Kelly & Sons (Firm)
- J. Oliver Johnson Inc.
- J. Otto & Son Nursery Co.
- J. P. Callahan, Son & Co.
- J. P. Councill Company,
- J. Palmer Gordon (Firm)
- J. Parmentier (Firm)
- J. Paul Keeney (Firm)
- J. Pillans & Sons (Firm)
- J. R. Hopkins (Firm)
- J. R. Johnson (Firm)
- J. R. Kimball (Firm)
- J. R. Sterling (Firm)
- J. Richard Barry (Firm),
- J. Richard Mood Nurseries,
- J. Roscoe Fuller & Company.
- J. Russell Smith (Firm)
- J. S. Bennett (Firm)
- J. S. Cushing Co.,
- J. S. Downer & Sons.
- J. Seulberger (Firm)
- J. Spielman & Son.
- J. Steckler Seed Co.
- J. T. Smith & Sons (Firm)
- J. T. Thompson (Firm)
- J. V. Edlund (Firm)
- J. Van Lindley Nursery Co. (Pomona, N.C.)
- J. Vandenberg-Verdegaal,
- J. W. Davidson and Co.
- J. W. Davies (Firm)
- J. W. Dodson and Son,
- J. W. Goddard (Firm)
- J. W. Jones & Son.
- J. W. Jones and Son.
- J. W. McNary (Firm)
- J. W. Stevenson (Firm)
- J. W. Tackett and Sons.
- J. W. Vandiver's Sons.
- J. W. Wile (Firm)
- J. Wentz & Co.
- J. Wilbur Smith (Firm)
- J. Wilder Seed Company.
- J. Wilkinson Elliott (Firm)
- J. Winchester & Co.,
- J. Wragg & Co.
- J. Wragg & Son's Company.
- J., J. D.
- J., S.
- J.A. & B. Lincoln.
- J.A. Bauer (Firm)
- J.A. Bauer Plant Co.
- J.A. Boyce Seed Company.
- J.A. Clifton Seed Company.
- J.A. Everitt (Firm)
- J.A. Everitt (Firm).
- J.A. Gage (Firm)
- J.A. Holder & Company.
- J.A. Hullibarger (Firm)
- J.A. Kemp (Firm)
- J.A. Kemp (Firm).
- J.A. Lewis (Firm)
- J.A. Lopeman (Firm)
- J.A. McCarty Seed Co.
- J.A. Peterson Sons (Nursery),
- J.A. Ramsburg (Firm)
- J.A. Simmers (Firm)
- J.A. Young (Firm)
- J.B. and J.S. Whalley (Firm)
- J.B. Anderson (Firm)
- J.B. Armstrong & Sons.
- J.B. Armstrong and Son.
- J.-B. Baillière (Firm)
- J.-B. Baillière et fils,
- J.B. Lippincott & Co.,
- J.B. Lippincott Company.
- J.B. Little (Firm)
- J.B. McLean (Firm)
- J.B. Miller (Firm)
- J.B. Millet Company,
- J.B. Morey Nurseries.
- J.B. Pilkington (Firm)
- J.B. Root & Co.
- J.B. Savage (Firm)
- J.B. Wagner (Firm)
- J.B. Watkins & Bro.
- J.B. Weaver & Sons.
- J.B. Whalley Nursery.
- J.B. Wight (Firm)
- J.B.E. Wernecke (Firm)
- J.C. Bloxom & Son.
- J.C. Forrest (Firm)
- J.C. Grossman (Firm)
- J.C. Hale (Firm)
- J.C. Jay (Firm)
- J.C. Jay (Firm).
- J.C. Murray (Firm)
- J.C. Nicholls (Firm)
- J.C. Nicholls, Jr. (Firm)
- J.C. Richey (Firm)
- J.C. Robinson (Firm)
- J.C. Robinson Seed Co.
- J.C. Robinson Seed Company.
- J.C. Schmidt (Bristol, PA)
- J.C. Schmidt (Firm : Bristol, Pa.)
- J.C. Schmidt (Firm)
- J.C. Suffern (Firm)
- J.C. Van Lierop (Firm)
- J.C. Welch & Son.
- J.C. Williams (Firm)
- J.D. Engle (Firm)
- J.D. Husted (Firm)
- J.D. Long (Firm)
- J.D. Long Seed Company.
- J.D. Monell (Firm)
- J.D. Thompson Carnation Company.
- J.E. Atkinson (Firm)
- J.E. Briggs (Firm)
- J.E. Button (Firm)
- J.E. Farnsworth (Firm)
- J.E. Farnsworth Co.
- J.E. Hoopes & Co.
- J.E. Hoopes Co.
- J.E. Hulin (Firm)
- J.E. Jackson (Firm)
- J.E. Miller Grape Nursery.
- J.E. Miller Nurseries.
- J.E. Spingarn (Firm)
- J.E. Walton'S Iris Gardens,
- J.F. Anderson (Firm)
- J.F. Bushnell (Firm)
- J.F. Cecil (Firm)
- J.F. Cordes (Firm)
- J.F. Dreyer (Firm)
- J.F. Jones Nurseries.
- J.F. Munsell (Firm)
- J.F. Noll & Co.
- J.F. Reece (Firm)
- J.F. Ripps (Firm)
- J.F. Rosenfield (Firm)
- J.F. Rosenfield Peony Gardens.
- J.F. Wilcox (Firm)
- J.G. Burrow (Firm)
- J.G. Carpenter & Co.
- J.G. Harrison & Sons (Berlin, Md.)
- J.G. Prestage & Co.