Book  (2007)  
 
'Hélène Duché' Hybrid Tea, light pink, 1921. Buatois. Includes description.

Book  (2007)  
 
'Mme Hélène Duché' Hybrid Tea, pink blend, 1921. Buatois. Mme Caroline Testout x Reine Emma des Pays-Bas. Includes description.

Book  (1958)  Page(s) 247.  
 
Mme. Hélène Duché. HT (Buatois, '21.) Mme. Caroline Testout X Reine Emma des Pays-Bas. Dbl., soft rose with silvery reflexes, edged carmine. (28)

Book  (1936)  Page(s) 221.  
 
Duché, Hélène (HT) Buatois 1921; Testout X R. Emma des Pays-Bas; tender pink with silvery reflexes, edges carmine, very large, double, solitary, growth 6/10, well-branched.

Website/Catalog  (1929)  Page(s) 19.  
 
Everblooming Roses
The so-called Everblooming Roses include the Hybrid Tea and Pernetiana groups. They do not bloom all the time, but if kept healthy and growing steadily, one crop of flowers succeeds another at brief intervals.
Hélène Duché. Hybrid Tea. (E. Buatois, 1920.) Flower soft rose, with silvery reflexes and border of petals carmine, very large and full. Vigorous growth.
Reputed to be a descendant of Mme. Caroline Testout, which puts it into excellent company. $1.50 each.

Website/Catalog  (1922)  Page(s) 10.  
 
Novelty Roses 1922.
Madame Helen Douche (HT.) ( E. Buatois) Growth vigorous and branching. flowers very large and full, handsome buds produced singly, colour soft rose with silvery reflexes. border of petals carmine. 4/- each.

Website/Catalog  (1921)  Page(s) 4.  
 
Hybrid Tea Roses.
Madame Helen Duche (E. Buatois)—Growth vigorous and branching, flowers very large and full, handsome buds produced single, colour soft rose with silvery reflexes, border of petals carmine.

Magazine  (1912)  Page(s) 110.  
 
MADAME HELENE DUCHE, issue de Caroline Testout x Reine Emma des Pays-Bas (H. Thé); Buatois, obt. (Concours international de Roses a Bagatelle de 1911-1912)