Website/Catalog  (1936)  Page(s) 6.  
 
Kelway's Gold Medal Pæonies.
Kelway's Single Flowered Pæonies.
June-flowering. All raised by Kelway unless stated otherwise.
Queen of May. Lavender pink; upright habit....3/6

Book  (1928)  Page(s) 68.  
 
Check List of Single Peonies
Queen of May, (Kelway.) French white.

Website/Catalog  (1909)  Page(s) [2].  
 
Single Peonies
Queen of May (Kelway), delicate soft pink...$1.50 per dozen

Book  (1907)  Page(s) 145.  
 
1635. May, Queen of; P. albiflora.
{1) 1899, Peter Barr & Son's Cat.
(2) 1899, Shady Hill Nursery Cat. p. 144.

Website/Catalog  (1900)  Page(s) 144.  
 
List of Single Pæonies.
Queen of May. White.

Magazine  (15 Jun 1895)  Page(s) 668.  
 
Messrs. Barr & Son's Paeonies.
Single Flowered Sorts.
The undermentioned plants, which are all varieties of P. albiflora, are especially worthy a place in any fairly representative collection. Queen of May which has large fine blooms of a lovely rosy hue changing later to soft pink, is characterised by an exceedingly strong rose-like perfume.

Website/Catalog  (1895)  Page(s) [2].  
 
Single Herbaceous Pæonies.
Fifty cents each, except as priced. Twelve varieties, our selection $5.00.
Some of the new single pæonies are even more beautiful than the double ones; being very delicate, they are most suitable as cut-flowers, and generally bloom quite early; below are some of the best varieties available.
Queen of May, French white, $1.00 each.

Magazine  (23 Jun 1894)  Page(s) 677.  
 
Pæonies at Long Ditton.
The nurseries of Messrs. Barr & Sons would at this season gladden the hearts of all lovers of hardy border flowers—more especially lovers of the beautiful Chinese Pæonies [...] Mention may be made of half-a-dozen of the most distinct and free flowering kinds—Queen of May, a lovely rose; Beatrice, a delicate rose pink; Princess of Wales, a blush pink; Victoria, a beautiful bright crimson; Venus, a bright rose tipped white; and Dawn of Day, a snow white with large and handsome shaped flowers.

Website/Catalog  (1890)  Page(s) 28.  
 
Single Herbaceous Pæonies.
Queen of May, French white. [K]