Website/Catalog  (1910)  Page(s) 39.  
 
European herbaceous peony varieties.
Paeonia albiflora 'Dorothy', carnation-pink, with silvery edge, single bloom. 1 piece M 0.90, 10 pieces M 8.-

Book  (1907)  Page(s) 72.  
 
726. DOROTHY; P. albiflora.
(1) 1899, Peter Barr & Son, Cat.
(2) Cornell Plot No. 1695.

Magazine  (7 Jul 1900)  Page(s) 709.  
 
The Paeonies.
Messrs. Barr & Sons, King Street, Covent Garden, London, W.C., and Long Ditton, Surrey, as growers of hardy plants, &c., have over two acres devoted to them. On Staurday, June 23rd, notes were made of a number of fine varieties which they largely cultivate in their nursery at the address just given. 
Singles.—The singles are varieties of Paeonia albiflora...
Dorothy is a rosy-mauve whose golden stamens also contribute to make it more lovely... 

Website/Catalog  (1891)  Page(s) 19.  
 
Beautiful Hardy Single Chinese Pæonias (Varieties of Albiflora).
Albiflora Dorothy, rose-carmine, shading to pink, with silvery edged petals, golden anthers...2 s. 6 d.