Website/Catalog  (1916)  Page(s) 5.  
 
Single Herbaceous Peonies
Princess of Wales (Barr), a delightful shade of pink resembling a wild rose. Stock limited $2.00 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  (1891)  Page(s) 19.  
 
Beautiful Hardy Single Chinese Pæonias (Varieties of Albiflora).
Albiflora Princess of Wales, beautiful rose, passing to blush, conspicuous yellow anthers...3 s. 6 d.