Book  (1936)  Page(s) 166.  
 
Columbia (hybrid wichurana) Hoopes & Thomas 1903; Testout X ? ; ?

Magazine  (27 May 1911)  Page(s) 254.  
 
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...
Columbia... Hybrid Wichuraiana, Hoopes, 1903, R. wichuraiana X Caroline Testout