Article (magazine)  (Jan 1955)  Page(s) 25.  
 
Varieties Raised in America. All by Professor Saunders...
The "Tea Rose Group." Generally yellow, but tinted or suffused reddish, single to double...
'Apricot,' (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 with reddish tones, 'Apricot', (Saund. 1948-1950), [Gardens] Morton Arboretum, Scott Foundation