Book  (Apr 1999)  Page(s) 392.  
 
Countess of Derby Hybrid Tea. A. Dickson 1905. The author cites information from different sources... flesh-peach...

Book  (1936)  Page(s) 202.  
 
Derby, Countess of (HT) A. Dickson 1906; pink to flesh-colour, veined peach, center salmon-coloured, large, double, fine form, high-centered, broad petals, fragrance 7/10 (tea), floriferous, continuous bloom, growth 7/10, upright.

Website/Catalog  (1921)  Page(s) 12.  
 
Roses.
Countess of Derby, rose, salmon centre; class: Hybrid Tea; habit of growth: vigorous.

Book  (Apr 1915)  Page(s) 158.  
 
[After the Index] Countess of Derby Hybrid Tea. Alex. Dickson & Sons 1905. Fair growth and foliage; some autumn bloom.

Website/Catalog  (1914)  Page(s) 15.  
 
Hybrid Tea Roses.
Countess of Derby, Alex. Dickson & Sons, Ltd., 1905, vigorous. Centre salmon, outer petals rose; large, very floriferous; sweetly perfumed.

Website/Catalog  (1912)  
 
Countess of Derby S. vig.,centre salmon, outer petals rose, petals large, smooth, and shell-shaped.

Website/Catalog  (1912)  Page(s) 76.  
 
 Ever-blooming Roses.
Countess of Derby  salmon, outer petals rose, large, free.

Magazine  (1909)  Page(s) 18.  
 
Comtesse Derby (A. Dickson). — Coloris saumon passant au rose chair.

Magazine  (1908)  Page(s) 55-61.  
 
"Essay on Hybridisation" By Alex. Dickson, Acting Director of Alex. Dickson & Sons, Ltd., Royal Irish Nurseries, Newtownards, County Down.

Out of many hundreds of crosses with this rose [La France], only in one single instance did we succeed in making it produce seed, but we feel that the labour we spent was amply repaid, as the ultimate result of it was the introduction of Mrs. W. J. Grant, known to you as Belle Siebrecht, in our opinion one of the finest roses in cultivation, at least from the Britishers' standpoint. In addition to this, we have always found from practical experience, the roses descended from this particular cross have always impressed their offspring with some at least of the more prominent qualities of the parents, and it was pursuing this particular line of breeding that enabled us to produce varieties, which from a British standpoint are ideal exhibition flowers, and at the same time the plants are floriferous and of excellent constitution. In this group we might mention ... Countess of Derby ...

Website/Catalog  (1908)  Page(s) 31.  
 
Countess of Derby  Blooms are large, smooth [illegible] shell shaoed. Colour, centre salmon; .....petals rose, passing to flesh veined .....as the flower expands.