Article (website)  (2016)  
 
At the exhibition of 1899 Wilhelm [Freundlich] showed new rose of his own selection, but it left unnoticed by the jury. In 1893 the sort ‘Mistress Bosanquet blanche’ appeared in the European catalogues of roses, the author of which Freundlich was recorded. However, there was a mistake: this sort of was launched back in 1832 by Frenchman Laffei. It is possible that by 1893 the sort had been lost in Europe, and as it remained in St. Petersburg, then it was returned to the catalogues by someone from the Europeans once again, but under another authorship. Although, it is possible, that the sort Laffei was breeded by B. Freundlich.

Book  (1936)  Page(s) 94.  
 
Bosanquet blanche, Mrs. (bourbon) Freundlich 1895; pure white, almost double, otherwise as above [Mrs. Bosanquet]

Book  (1899)  Page(s) 184.  
 
Mrs. Bosanquet blanche, Bourbon, Freundlich, 1895, blanc pur