Book  (1954)  Page(s) 216.  
 
Radiance  (Cook, 1904)— For many years after this variety was introduced by Peter Henderson in 1908, it was the most widely distributed of all Hybrid Teas in America, and now, almost fifty years later, it is still recognized as one of the best pink varieties. Its vigor, tolerance of different climates and soils, comparative disease resistance, and large, fragrant, cameo-pink blossoms of 23 petals were directily responsible for the later popularity of the Hybrid Teas as garden plants. Radiance was the most famous of the more than 25 varieties produced by John Cook of Baltimore during nearly fifty years of breeding work, and was the result of crossing Enchanter X Cardinal, both previous Cook introductions.

Article (magazine)  (Dec 1951)  Page(s) 20.  
 
Radiance did more thany any other [rose] ever introduced to establish hybrid teas as popular garden roses.

Book  (1951)  Page(s) 84.  
 
Mrs. Simon Ross, Geelong, Vic. Pink Roses in My Garden.
Mme. Abel Chatenay and Radiance are what may be termed two-tone pinks. The outside of the petal is mid-carmine and the inside of a paler toning. Both are excellent growers, sweetly scented, and defy the elements. Their best colour often comes in the hot weather.

Book  (1948)  Page(s) pp. 112.  Includes photo(s).
 
Red Radiance and Radiance. Hybrid Tea

Book  (1947)  
 
p13.  Harry H. Hazlewood.  Novelty
Richer fragrance: Autumn, Chateau de Clos Vougeot, Crimson Glory, Dame Edith Helen, Girona, Etoile de Hollande, Georg Arends, Gruss an Teplitz, Hoosier Beauty, Laurent Carle, Malar Ros, Marcia Stanhope, Mrs. Bryce Allan, Mrs. H. Brocklebank, Mrs. W. E. Lenon, Ophelia, President H. Hoover, Radiance, Rose Marie, Souv. de P. Ketten, Talisman and many others.

p85.  A. Brundrett, Narre Warren North, Vic. Roses for Marble Bar:
Repeatedly, I have noticed some varieties blooming wonderfully well during the hot, dry weather…
We must also not overlook those two varieties most popular as market cut-flowersnin N.S.W., very popular in Queensland,
U.S.A. and elsewhere, but somehow overlooked here in Victoria— Radiance (H.T.) (Cook, U.S.A., 1908), silvery pink, with a carmine pink reverse, semi-double (25-35), and its sport, Red Radiance (H.T.) (Gude, U.S.A., 1916), cerise red, semi-double (25-35). They are two most useful Roses through the hot summer months. Although only semi-double, they hold very well because of their incurved form, which some people call ugly, but which real Rose lovers appreciate as one of the diverse forms in which the Rose displays her beauty.

Book  (1947)  Page(s) 126.  
 
Radiance (Garden)  Needs no introduction. For garden and vases and florists' trade it is universally grown. Favourite for rose hedges. Always among the top listers. Double blooms of carmine pink with silvery pink inside the petals. Vigour of growth, healthy foliage, and freedom of bloom are unsurpassed. Though the flowers are full nosed, their decorative quality is peculiarly their own. Long, strong stems. A sweet rich fragrance. Can be grown to pointed buds in Autumn.  Fragrant. Habit 4. (HT)

Website/Catalog  (1947)  Page(s) 38.  
 
General List.  Radiance (HT. Cook 1908) F. 4. Silvery pink interior with carmine pink reverse.  The average blooms are of a somewhat hooded type but are so freely produced on long strong stems all through the season that the variety has achieved a really wonderful popularity.  When well grown, quite long pointed blooms may be cut fully equal to exhibition standard, particularly in the autumn months.....E. 

Book  (1947)  Page(s) 203.  
 
Radiance. HT. (J. Cook; int. P. Henderson, '08.) Enchanter x Cardinal. Bud globular; fl. very large, dbl., cupped, very fragrant, cameo-pink, deeper toward centre; long stem. Fol. large, leathery.  Very vig. (3 - 5 ft.); abundant, recurrent bloom. 

Website/Catalog  (1946)  Page(s) 23.  
 
RADIANCE (J. Cook 1909). Fleur d'un beau rose pâle grande, pleine, florifère. 

Website/Catalog  (1942)  Page(s) 17.  Includes photo(s).
 
Wight's Illustrated Dozen Fine Roses for the South
Wight's Georgia-Grown Roses
Pink Roses
Pink Radiance. Hybrid Tea. Lovely pink. Continuous bloomer. See illustration.