Website/Catalog  (1938)  Page(s) 14.  
 
Royal Scarlet.  H.W. Much like the well known Paul's Scarlet Climber except that the flowers are much deeper in color.

Book  (1936)  Page(s) 631.  
 
Royal Scarlet (HP) G. Paul 1899; Mme. Rady X Cheshunt Scarlet; vivid scarlet red, single, cluster-flowered, floriferous, repeats, red-brown foliage, bushy habit, short. Sangerhausen

Book  (1936)  Page(s) 545.  
 
Paul's Royal Scarlet (HP) G. Paul 1898; vivid crimson.

Book  (1910)  Page(s) 294.  
 
Royal Scarlet Hybrid Perpetual: a vivid scarlet single flowered Rose. Very effective in the mass.

Website/Catalog  (1904)  Page(s) 102.  
 
Royal Scarlet  Single.   A single scarlet flower; bushy habit, with reddish-brown foliage

Magazine  (3 Jul 1899)  Page(s) 26.  
 
Messrs. Paul & Son, Cheshunt, staged an interesting collection of Roses, showing crosses made by Mr. G. L. Paul, one of the most striking was . . . also Royal Scarlet, which owes its parentage to Cheshunt Scarlet and Marie Rady.