Book  (1936)  Page(s) 160.  
 
Clerk, Captain Ronald (hybrid lutea) McGredy 1923; vivid vermilion with scarlet-orange, largem single to semi-double, high-centered, lasting, solitary or up to 3, fragrance 4/10, floriferous until September, short habit. Sangerhausen

Website/Catalog  (1929)  Page(s) 6.  Includes photo(s).
 
Recent Introductions and Rare Varieties
Captain Ronald Clerk. Hybrid Tea. (S. McGredy & Son, 1923.) Tapering, scarlet buds, opening to nearly single flowers of vivid scarlet-orange, with yellow at the base of the sharply reflexing petals. Fragrant, free-flowering, vigorous and bushy.
An astonishingly strong color which is very distinct and scarcely ever fades, combining hues of The Queen Alexandra Rose and Padre. It belongs to the new group of cactus-type Roses of which Elvira Aramayo is the type, the petals being curled back sharply throughout their length, forming tube-like rays in the manner of cactus dahlias. We consider this one of the showiest of the more recent decorative varieties. See illustration facing page 5. $2 each.

Website/Catalog  (1928)  Page(s) 7.  
 
Hybrid Teas, Teas  and Pernetiana.
Captain Ronald Clerk. Pernetiana. (S. M'Gredy & Son, 1923.) Vermilion, shaded orange, fairly full, long and pointed, well shaped and sweet scented. Growth free, bushy, flowering continuously.

Magazine  (Oct 1927)  Page(s) 89.  
 
Roses nouvelles de 1923.... Rosiers Pernet ....
Captain Ronald Clerk (S. Mc Gredy).- Fleur grande, assez pleine, de belle forme pointue. Coloris rouge vermillon brillant leinlé d'orange sur fond ocre orange. Floraison abondante et continuelle. Variété très distincte d'un coloris nouveau.

Magazine  (Aug 1927)  Page(s) 126.  
 
Le 18 juin 1927, une commission composée de MM. Griffon, Bernaix, Croibier fils, Ch. Siret, Guillot, s’est réunie chez M. Charles Ducher, rosiériste, 324, route d’Heyrieux, à Lyon-Monplaisir, afin d’examiner ses cultures ...Nous avons noté parmi sa nombreuse collection de nouveautés et de variétés anciennes les suivantes :
Variétés 1923. — Polyanta : Orange King. — Hybrides de Thé : Captain F.,S. Harvey Cant, Eldorado, Florence L. Izzard, Hermann Neuhoff. — Rosiers Pernet : Amélie de Béthune, Capitaine Ronald Clerk.

Website/Catalog  (1926)  Page(s) 94.  
 
Captain Ronald Clerk (1923) (Pernetiana). FI. vermillon brillant teinté d'orange, pl., forme pointue, odor. Arb. vig. et buissonnant. Floraison abondante et continuelle. FI. très recommandable pour plantation de jardins.

Book  (1926)  Page(s) 50.  
 
Captain Ronald Clerk (S. McGredy & Son, 1928): very large single flowers of brilliant orange-scarlet.

Website/Catalog  (1925)  Page(s) 33.  
 
New Roses 1924. Captain Ronald Clerk [as per 1924 but with the addition of] .....blooms almost single, buds of great length and pointed......

Website/Catalog  (1924)  Page(s) 44.  
 
Rosiers nouveaux 1923...
Captain Ronald Clerk (Mc Gredy et Son). — Fleur vermillon brillant, teinté d'orange sur fond ocre orange assèz pleine, belle forme, pointue odorante ; vig. buissonnant. fl. abondante et continuelle.

Website/Catalog  (1924)  Page(s) 11.  
 
New Roses, 1924. Captain Ronald Clerk (HT) (McGredy). Free bushy growth, colour brilliant vermilion, shaded orange, with orange base, blooms fairly full, of great length and pointed, sweetly scented.
Very rich colour somewhat approaching ‘Austrian Copper’. Peculiar perfume. Large red thorns and red stems, 10 to 15 petals. Good foliage.