Book  (Apr 1993)  Page(s) 8.  
 
Alfred K. Williams Hybrid Perpetual, carmine-red, changing to magenta, 1877, 'Général Jacqueminot' sport; Schwartz, J.

Book  (Jun 1992)  Page(s) 123.  
 
Alfred K. Williams Hybrid Perpetual. Schwartz, 1877. Sport of 'Général Jacqueminot'. [Author cites information from different sources.]... Carmine red, changing to magenta... Magenta-red, shaded with crimson... Thorny... Indispensible to exhibitors, but of little value for garden display...

Book  (1958)  Page(s) 5.  
 
Alfred K. Williams. HP. (J. Schwartz, 1877.) Gén. Jacqueminot sport. Large, full (45 petals), convex, imbricated, fragrant, carmine-red, changing to magenta. Occasional recurrent bloom.

Article (magazine)  (Dec 1951)  Page(s) 206.  
 
Alfred K. Williams Description... Large blooms, but not fully double... carmine crimson to magenta red...

Book  (1940)  Page(s) 6.  
 
Alfred K. Williams Hybrid Perpetual. (J. Schwartz, 1877)... carmine-red, changing to magenta. Occasional recurrent bloom.

Book  (1936)  Page(s) 758.  
 
Williams, Alfred K. (HP) Schwartz 1877; bright carmine, fades to light violet or magenta-red, large, double, globular, imbricated, fine form, fragrance 6/10, floriferous, repeats, autumn-bloomer, growth 6/10, upright. Sangerhausen

Website/Catalog  (1929)  Page(s) 37.  
 
Hybrid Perpetual Roses
Alfred K. Williams. (Schwartz, 1877.) Magenta-red, shaded crimson, large and perfect, with beautifull imbricated petals; some fragrance. Moderate growth, but hardy and free flowering.
One of the most beautiful, but needs good care to bring it to perfection. The bloom is of the Alfred Colomb type and the plant much like General Jacqueminot. This and Alfred Colomb are almost the only survivors of a good old family of exhibition Roses of the highest class. Both of them require skilled care and cultivation to enjoy them at their best.

Website/Catalog  (1925)  Page(s) 26.  
 
'Fred. J. Harrison' .....in form, size and substance resembling the H.P. A. K. Williams.

Website/Catalog  (1921)  Page(s) 6.  
 
Roses.
Alfred K. Williams, brilliant carmine; class: Hybrid Perpetual; habit of growth: vigorous.

Book  (1920)  Page(s) 85.  
 
Gloire des Rosoménes (Vibert, 1825), a rose of an earlier generation than the others, and to which it appears we are indebted for Géant des Batailles and many otherbrilliant roses with red prickles, such as Alfred K. Williams. Probably also Générale Jacqueminot.