Book  (Dec 2000)  Page(s) 321.  
 
G. van Thienhoven
Hybrid Perpetual
W. Lourens, 1909
Arnheim, Holland

Book  (1936)  Page(s) 702.  
 
van Thienhoven, G. (HP) Lourens 1909; V. Hugo x ? seedling; deep Carmine, large, double, solitary or up to 3, floriferous, continuous Bloom, growth 7/10, upright, 1 m.

Magazine  (17 Jun 1911)  Page(s) 290.  
 
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...
G. von Tienhoven [sic]... Hybrid Perpetual, Lourens, 1908, Victor Hugo X seedling (unnamed)

Website/Catalog  (1911)  Page(s) 11.  
 
New British & Continental Roses of 1910 at reduced prices. 
Mrs G.van Tienhoven  HT.  (Laurens). Deep brilliant carmine; very free and constant in flowering.