Book  (1936)  Page(s) 185.  
 
Cumberland Belle (moss) Dingee & Conard 1900; sport of Pss. Adelaïde; glossy silvery pink, large, very double, fragrance 5/10, repeats, mossed, growth 8/10, climbing. Sangerhausen

Book  (1921)  Page(s) 94.  
 
Pillar Roses
I give a list, necessarily a very inadequate one, of climbing roses of special merit for pillars.
Climbing Cumberland Belle. Moss. Pink.

Magazine  (27 May 1911)  Page(s) 254.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Cumberland Belle... Moss, Dreer, 1900, Sport Princesse Adelaide

Book  (1910)  Page(s) 193, 245.  
 
Page 193: Cumberland Belle introduced between 1874 and 1902
Page 245: Cumberland Belle A climbing Moss Rose with bright silvery rose-coloured flowers.

Website/Catalog  (1909)  Page(s) 75.  
 
Cumberland Belle M. Cl.  A climbing Moss Rose with bright silvery rose flowers. 

Website/Catalog  (1899)  
 
New Climbing Moss Rose.Cumberland Belle. We take pleasure in offering for the first time to the legion of lovers of the Queen of Flowers, this, the forerunner of a new race of Roses, a grand true climbing Moss Rose. It is of American origin, having been found growing in a private garden in the historic Cumberland Valley — a sport from that pretty Moss Rose 
Princess Adelaide, itself a strong vigorous grower which is wonderfully developed in the offspring, the original sport the first 
season having attained a height of over fifteen feet and had one hundred and eighteen buds and flowers on it at one time. 
The past season, planted side by side with Crimson Rambler and other rampant growers, it fully equaled them in vigor of growth. In color it is identical to the parent, a bright silvery rose, very double; the buds nicely mossed and exquisitely fragrant. Altogether a most unique and desirable acquisition. (See cut.) Young plants, 50 cts. each; 3 for $1.25;  §5.00 per doz.