Book  (2000)  Page(s) 192.  
 
‘Dame Edith Helen’ =Hybride de thé… rose vif et lumineux… Sans jamais se couvrir de fleurs, ce rosier fleurit continuellement jusqu’en automne sur de longues tiges robustes… robuste buisson au feuillage coriace. Dickson, UK, 1926. Ascendance inconnue.

Book  (Apr 1999)  Page(s) 393.  
 
Dame Edith Helen Hybrid Tea. A. Dickson 1926. Parentage: 'Mrs. John Laing' (Hybrid Perpetual) x a Pernetiana (?). The author cites information from different sources... vivid pure pink...

Book  (1995)  Page(s) 104.  
 
Standards of the creamy-white rose 'Pascali' give height above 30 bushes of 'Dame Edith Helen', a 1920s Hybrid Tea double pink rose, underplanted with pink-flowering Potentilla 'Miss Willmott'.

Book  (Sep 1993)  Page(s) 140.  Includes photo(s).
 
Dame Edith Helen Large-flowered. Dickson 1926. Description... Cool rose-pink, huge, perfectly formed, and gloriously fragrant... the exhibition rose during the 1920s, '30s, and '40s... named for the then Marchioness of Londonderry...

Book  (Apr 1993)  Page(s) 122.  
 
Hybrid Tea, medium pink, 1926, Dickson, A. Flowers glowing pink, double, cupped, very large; long, strong stems, fragrant; foliage leathery; vigorous, bushy growth; not very free bloom.

Book  (Feb 1993)  Page(s) 180-181.  Includes photo(s).
 
Dame Edith Helen Large-flowered hybrid tea. Parentage: unknown. England 1926. Description and cultivation. The very fragrant flowers are large and double in a rich silvery pink. The blooms sometimes open quartered in the old-fashioned style.

Book  (Jun 1992)  Page(s) 262.  
 
Dame Edith Helen Hybrid Tea. A. Dickson, 1926. Parentage: 'Mrs. John Laing' x ? a Pernetiana. [Author cites information from different sources.]

Article (website)  (1982)  Page(s) 14.  
 
Dame Edith Helen (H.T.) Huge, very double, glowing pink blooms held on a strong erect stem. Healthy foliage. 1926. (R)
4 x 3’. 

Book  (1978)  Page(s) 98.  
 
Dame Edith Helen in Queensland grew so well that it was confined to special classes in the show of a society there, on the grounds that there was no competition between it and others. I was tempted to include 'Dame Edith Helen' in this list of Hybrid Teas, because it was a superb flower, clear rose pink, full of petals, and as fragrant as any. It came from Alexander Dickson in 1926.  But it was of little use to anyone who was not an exhibitor or a Queenslander, because of its reluctance to grow.

Book  (1961)  Page(s) 113.  
 
W. C. Thorn. What's In A Name? 'Dame Edith Helen' once a great favourite, was named for the Marchioness of Londonderry whose estate was quite near the Dicksons who raised it. There was already a variety named the 'Marchioness of Londonderry' so she asked for this rose to be called simply 'Dame Edith Helen'.