Article (magazine)  (Jan 1955)  Page(s) 25.  
 
Varieties Raised in America. All by Professor Saunders...
The "Golden Hind Group." Yellow, clear or almost clear , generally semi- or fully double...
'Celestial,' (1948-1950)

Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Lutea hybrid, Yellow, 'Celestial' (Saund. 1948-1950), [Gardens Morton Arboretum, Scott Foundation

Book  Page(s) 52.  
 
Celestial 16423