Book  (19 Apr 2000)  Page(s) 112.  
 
'Debonair', HT, my 1946 .. description

Book  (1953)  Page(s) 143.  
 
Mr. E. Fisher Van der Veen,  Christchurch, N.Z. 
Debonair: Vigorous growth and glossy dark green foliage. Blooms are high centred. Bright yellow, fading to primrose.

Book  (1949)  Page(s) 39.  
 
Dr. A. S. Thomas.  Let Us Take Stock - Old and New. 
Debonair  (1 plant, 1 year). Strong healthy growth but so far the flower though fairly well formed, has poor petal substance. A pale yellow. It will probably not endure the test of time.

Website/Catalog  (1949)  Page(s) 6.  
 
Novelty Roses 1949. Debonair (HT. Lammerts 1946) Full double, fragrant, high-centred blooms of clear primrose, borne above handsome disease-resistant foliage. A moderate growing variety with 30 petals. 10/6 each.
 

Book  (1947)  Page(s) 126.  
 
Herbert C. Swim. An Evaluation of the newer Roses in the United States
Debonair, another seedling of Dr. Lammerts, has a more handsome plant on the Pacific Coast than does Lowell Thomas, and in the fall the flowers are just as brilliant. In the spring and summer, however, the flowers of Debonair lack the deep colour of those of Lowell Thomas. While the plants are well clothed with handsome, glossy, mildew-resistant foliage, we find its foliage not as resistant to black spot as that of Lowell Thomas. It is, however, more resistant to mildew.

Magazine  (1946)  Page(s) 111, vol. 2.  
 
Use of Embryo Culture in Rose Breeding
Walter E. Lammerts
One of the most interesting examples of a rose variety resulting from this technique is one called Debonaire, a very highly mildew resistant yellow rose which I developed at Armstrong's Nurseries. The rapidity with which this variety was developed was largely due to the saving of time in the initial stages by the use of the embryo culture technique.

[Apparently the technique was used to produce the unnamed seedling pollen parent crossed with Rapture.]