Book  (Apr 1993)  Page(s) 287.  
 
Kersbergen Polyantha, bright currant-red, 1927, 'Miss Edith Cavell' sport; Kersbergen.

Book  (Jun 1992)  Page(s) 246.  
 
Kersbergen Oosthoek/Kersbergen, 1927. Sport of 'Miss Edith Cavell'. Red.

Book  (1958)  Page(s) 183.  
 
Kersbergen. Pol. (Kersbergen, '27.) Miss Edith Cavell sport. Bright currant red; very large cluster.

Magazine  (Jun 1948)  Page(s) 2. trimester, p. 13.  
 
[From "Classification et Création des Roses Polyantha", by Dr. Walter E. Lammerts, translated from the ARS Annual 1947]
Une série vraiment remarquable de sports a été produite par Orléans Rose, et certaines de ces roses ont, à leur tour, donné des sports. La liste de ces sports, établie par ordre chronologique, est la suivante :
ORLEANS ROSE (1909), rose vif, cramoisi, centre blanc.
1^e Miss Edith CaveII (1917)...Sports de Miss Edith Cavell:...
b) Kersbergen (1927), rouge groseille brillant.
 

Website/Catalog  (1938)  Page(s) 45.  
 
Polyantha and their Hybrids (Dwarf Bedding Types)
No pruning necessary except to remove the past season's flower stems.
Kersbergen... Deep crimson, large trusses. Extra good. Recommended. Introduced 1927.

Book  (1936)  Page(s) 383.  
 
Kersbergen (polyantha) Oosthoek 1927 (Cutbush); glossy currant-red to scarlet-crimson, fades to light red, small, double, large clusters, continuous bloom, growth 6/10, short. Improved Ideal. Sangerhausen

Book  (1934)  
 
p214. F. S. Harvey-Cant. Polyantha Roses for Massing.
Others, such as 'Kersbergen' and 'La Reine Elizabeth' will "burn" in hot sunshine, and demand positions shaded from the afternoon sun, to develop their full beauty.

p215 Strong-growing with clusters of Miniature Flowers: 'Ideal', 'Kersbergen', 'La Reine Elizabeth', 'Orleans Rose' and.....

Book  (1933)  Page(s) 154.  
 
Lewis Levy. The Newer Dwarf Polyanthas.
'Kersbergen' is an improvement on Ideal and 'La Reine Elizabeth', being less liable to burn in the sun. The colour is deep scarlet crimson, and the flowers come in large clusters. The growth is also quite satisfactory.

Book  (1930)  Page(s) 26.  
 
Dwarf Polyantha Roses
Listed separately this season, for convenience sake, these true ever-blooming Roses, which bear their showy clusters of small flowers almost the whole year through, are most valuable for bedding, massing and edging where a continuous blaze of color is desired.
Kersbergen (1927)  New; an improved Ideal; brilliant currant-red, in large clusters.  ...  $1.25

Website/Catalog  (1929)  Page(s) 35.  
 
New Roses 1929
Kersbergen (D. Poly) (W. Cutbush & Son, 1927). A great improvement over Ideal. Flower bright currant red, changing to clear red which colour is retained to the end, borne in very large panicles. Mildew resistant. 5/- each.
Similar to Ideal but perhaps a little brighter.