Creator
- American Rhododendron Society1
- Bernie, Frederick, fl. 17921
- Booker, Betty Burwell, 1875-19671
- Bowles, Henry Carington , 1763 - 18301
- Browne, Theodore1
- Carver, Samuel, 1756-18411
- Chesse, Ralph 1
- Crowquill, Alfred, 1804-18721
- Cruikshank, George, 1792-18781
- Cunningham, Ann Pamela, 1816-18751
- Dalí, Salvador , 1904-19891
- Dighton, Robert, 1752-18141
- Dodge, Harrison Howell, 1852-19371
- Dold, W. E. (William Elliott)1
- Dunkarton, Robert, 1744-18151