Article (magazine)  (Jan 1955)  Page(s) 24.  
 
Varieties Raised in America. All by Professor Saunders...
The "Roman Gold Group." Yellow, clear or almost clear , generally single.
'Arcadia,' (1942)

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, 'Arcadia', (Saund. 1942), [Gardens] Scott Foundation

Book  (1944)  Page(s) 104.  
 
For next year 1945
Make a master list of tree peonies to be grafted & check them off as done.
For 1944
...Arcadia 321 4+9+2 [grafts]

Book  Page(s) 1.  
 
Arcadia 321 1939 5 grafts...1940 13 grafts ...Semidouble ...paler yellow, fine + enough different. Holds its flowers..

Book  Page(s) 43.  
 
Arcadia # 321 1944 Home Grounds Row 1 1 small....