Book  (Jan 1999)  Page(s) 632.  
 
P. lactiflora 'Whitleyi Major' single, ivory-white flowers with yellow stamens

Book  (Jan 1999)  Page(s) 86.  Includes photo(s).
 
Whitley, a nurseryman in Fulham, London, introduced one of the first P. lactiflora varieties to reach Europe in 1808/ Whitleyi Major

[Incorrect, it was the double form 'Whitleyi' which was introduced in 1808]

Website/Catalog  (1931)  Page(s) 21.  
 
Single-blooming Chinese and Japanese peonies ...Paeonia sinensis Whitley Major, largest in pure white, orange stamens, 70 to 100 cm, June ....1,50 Mark [10] 13,50 [100] 120,--

Website/Catalog  (1927)  Page(s) 30.  
 
Single Peonies: These are of the form of a wild single rose, having a single row of petals surrounding a tuft of golden stamens.
Albiflora. The Bride. Pure white large flower.  Plant tall and robust but inclined to slightly droop.  Each $1.00

Website/Catalog  (1926)  Page(s) 79.  
 
Wittley major, blanc pur, centre orange

Book  (1917)  Page(s) 224.  
 
Albiflora ( white flowered) . Central China and Siberia. Older Varieties: Candida...

Website/Catalog  (Aug 1910)  Page(s) 14.  
 
Pivoines herbacées...Variétés nouvelles...The bride; blanc pur ...3 fr.

[no longer listed in the 1928 catalogue]

Book  (Apr 1907)  Page(s) 47.  
 
423. CANDIDA, P. albiflora
(1) 1820, Botanical Register, Vol. 6, No. 485.
(2) 1837, Hovey's Mag. Vol. 3, p. 286.
(3) 1886, The Garden, Vol. 30, p. 589.
(4) Cornell Plot No. 256.
 

Book  (1907)  Page(s) 42.  
 
La Fiancee. Dessert, 1902. Synonym Albiflora. Broad, single flowers; exceedingly floriferous; wide petals of silky and almost transparent whiteness.
 

Magazine  (1 Sep 1900)  Page(s) 163.  Includes photo(s).
 
from The Garden, September 1, 1900, p.163:
THE FLOWER GARDEN.
Pæonia Whitleyi.
In the early half of June no flowers are more welcome in bold groups or large single plants than the single kinds of P. albiflora, of which the white-flowered P. Whitleyi shown in the illustration is one. There are other nearly related kinds in various shades of pink, but they are scarcely so beautiful as the white ones. P. albiflora was first discovered in Siberia. It is the parent of the many grand kinds of June flowering double Pæonies, in their many varieties of colouring, of white and yellow-white, pink, rose, and crimson, many of them sweetly scented. Of the garden forms of the single white P. albiflora, of which P. Whitleyi is a wild variety, though scarcely a species, the best is known as Backhouse's The Bride.