Book  (1907)  Page(s) 72.  
 
724. DORIS; P.
(1) 1901, The Gardening World, Vol. 17, p.686.
(2) 1904, Harrison's Paeony Manual, p. 52.

Book  (1904)  Page(s) 52.  
 
Single Paeonys.
I name a few of the leading ones from Kelway's list.
Doris. Bright rose.

Website/Catalog  (1902)  Page(s) 15.  
 
Kelway's New Single-Flowered Pæonies of 1900-1901.
Doris, bright rose.

Magazine  (22 Jun 1901)  Page(s) 408.  
 
Pæonies.—Messrs. Kelway have favoured us with a sample of their superb Pæonies. [...] Among the so-called single and semi-double flowers are:
Doris.—Semi-double, with rose coloured petals, which contrast well with the yellow anthers.

Magazine  (22 Jun 1901)  Page(s) 686.  
 
Pæonies From Langport.
Three single varieties represented a class favoured by many growers who prefer single to double flowers. The widely expanded flowers of Doris have rosy-carmine petals, fading to a silvery cast at the edges. Countess Cadogan is notable for its large silvery pink flowers, with a great brush of yellow stamens in the centre as in the case of Doris.