Book  (Apr 1999)  Page(s) 366.  
 
Havering Hybrid Musk. Bentall 1937... the flowers are of soft pink, large, and semi-double... Havering-atte-Bower, home of Pemberton...

Book  (Apr 1993)  Page(s) 236.  
 
Havering Hybrid Musk (Shrub), medium pink, 1937, Bentall. Description.

Book  (1990)  Page(s) 111.  
 
Havering Hybrid Musk. Bentall 1937. Description... named after the home of Joseph Pemberton, who employed him.

Book  (1940)  Page(s) 19.  
 
J.A. Bentall, Havering, Romford, Essex, England. (Successor to J.H. Pemberton.) 'Havering'