Book  (1936)  Page(s) 94.  
 
Boskoop, Baby (polyantha) Kersbergen 1910; M. N. Levavasseur X Euphrosine; pink, cluster-flowered, continuous bloom, very short

Website/Catalog  (1914)  Page(s) 35.  
 
Polyantha Pompons (Bedding Types).
No pruning necessary except to remove the past season's flower stems.
Boskoop Baby... Kesbergen Bros., 1910, robust. China rose. Marvellously free-flowering.

Website/Catalog  (1914)  Page(s) 10.  
 
Polyantha Boskoop Baby. 25-35 cm high; pink, mildew-free

Magazine  (20 May 1911)  Page(s) 243.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Boskoop Baby... P[erpetual]. P[ompon].*, Wezelenburg, 1909, Mme. N. Levavasseur X Euphrosyne

*i.e., dwarf Polyantha