Book  (Apr 1993)  Page(s) 157.  
 
Ellesmere Hybrid Tea, flowers ivory-white to pure white, 1927, 'Ophelia' seedling; Allen.

Book  (1940)  Page(s) 6.  
 
A.J. and C. Allen, Norwich, England [breeders of 'Ellesmere']

Book  (1936)  Page(s) 236.  
 
Ellesmere (HT) Allen 1927; Ophelia X ? ; ivory-white, fades to pure white, large, well double, fine form, solitary or up to 4, fragrance 4/10, floriferous, few prickles, growth 6/10. Sangerhausen

Article (misc)  (1929)  Page(s) 220.  
 
Ellesmere Hybrid Tea (A.J. and C. Allen, 1927). Seedling of 'Ophelia'... ivory-white passing to pure white... Few thorns...