Peonies, The Manual of the American Peony Society (1928)  Page(s) 68.  
 
Single Peonies
Queen of the Belgians. (Kelway.) White.

Peonies, The Manual of the American Peony Society (1928)  Page(s) 68.  
 
Single Peonies
Queen of May, (Kelway.) French white.

Kelway & Son's Wholesale Catalogue of Plants...Langport, Somerset (1933)  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

Kelway & Son's Wholesale Catalogue of Plants...Langport, Somerset (1933)  Page(s) 6.  
 
Kelway's Gold Medal Pæonies.
Kelway's Single Flowered Pæonies.
June-flowering. All raised by Kelway unless stated otherwise.
Queen of the Belgians. Pure ivory white, like a water lily, with red carpel, on tall stout stems. Very beautiful....7/6

Kelway & Son's Wholesale Catalogue of Plants...Langport, Somerset (1933)  Page(s) 6.  
 
Kelway's Gold Medal Pæonies.
Kelway's Single Flowered Pæonies.
June-flowering. All raised by Kelway unless stated otherwise.
Red King. (New 1934.) Rich blood-red; large flower, free and most effective. Long-stemmed; tall. Mid-season....6/-

Farr Nursery Company, Weiser Park, Pennsylvania (1934)  Page(s) 13.  
 
Tree Peony List
B. H. Farr. Single; vivid orange-scarlet...$10 00

N.B. from the Fall-planting catalogue; an earlier 1934 catalogue described B. H. Farr as "single, vivid cerise"...

Farr Nursery Company, Weiser Park, Pennsylvania (1932)  Page(s) [back cover].  
 
Tree Peony, Rosina, A New Era in Tree Peonies
The Farr Collection of Tree Peonies, right now, includes 247 varieties which have attracted thousands of admiring visitors since 1916. Seldom, however, have we been able to permit sales at less than $10 per plant because we rarely possessed more than two or three plants of the most admired varieties, and it was more important that these "parent" plants be conserved for future propagating purposes than to sell them at high prices.
For some years now, we have been propagating only the "Best 50" varieties which were selected after fifteen years of collecting, testing, and observing, and which will be introduced throughout coming years. It hardly seems possible that at last we possess an ample supply of a Tree Peony beside Moutan and one of the "Best 50" as well; for while Tree Peonies are easy to maintain, it is difficult and costly to produce new plants.
There are 380 field-grown and bloom-tested plants of Tree Peony ROSINA now in our nursery rows after two years of unprotected field-exposure to parched summers and zero winters. Thanks is due to visitors who [illegible] indicated a preference for the delicate flesh and pink tints and who, accordingly, encouraged our maximum propagating effort toward these sorts.
ROSINA is of medium growth-rate and exceptionally hardy, healthy, and free blooming, as are all of the "Best 50". The blooms are large, semidouble, delicate flesh-pink, with crêpe-paper-like petals. It is two weeks earlier than the herbaceous Peonies and develops more fully double as plants become older. The prices are the lowest we have ever applied, and not much more than the prices in Europe or Japan today. 
6 to 8 inches, 3-year plants...$2 50 each 
8 to 10 inches, 4-year plants...$3 50 each

The Garden (15 Jun 1889)  Page(s) 567.  
 
Societies and Exhibitions.
Royal Horticultural Society. June 11.
Messrs. Kelway & Son, of Langport, received a silver-gilt medal for a magnificent display of Pæonies, Pyrethrums, and other flowers in season [...] Of the double [Pæonies] the very finest were Agenoria, French white centre and pink-shaded outer segments; Baroness Schroeder, dense centre, fine pink guard petals; Prince George, crimson-purple; Lutea variegata, yellow-white guard petals; Miss Salway, pale yellow; Maria Kelway, rose; and Lady F. Bramwell, rose, very sweet.

The Garden (15 Jun 1889)  Page(s) 567.  
 
Societies and Exhibitions.
Royal Horticultural Society. June 11.
Messrs. Kelway & Son, of Langport, received a silver-gilt medal for a magnificent display of Pæonies, Pyrethrums, and other flowers in season [...] Of the double [Pæonies] the very finest were Agenoria, French white centre and pink-shaded outer segments; Baroness Schroeder, dense centre, fine pink guard petals; Prince George, crimson-purple; Lutea variegata, yellow-white guard petals; Miss Salway, pale yellow; Maria Kelway, rose; and Lady F. Bramwell, rose, very sweet.

The Garden (15 Jun 1889)  Page(s) 567.  
 
Societies and Exhibitions.
Royal Horticultural Society. June 11.
Messrs. Kelway & Son, of Langport, received a silver-gilt medal for a magnificent display of Pæonies, Pyrethrums, and other flowers in season [...] Of the double [Pæonies] the very finest were Agenoria, French white centre and pink-shaded outer segments; Baroness Schroeder, dense centre, fine pink guard petals; Prince George, crimson-purple; Lutea variegata, yellow-white guard petals; Miss Salway, pale yellow; Maria Kelway, rose; and Lady F. Bramwell, rose, very sweet.