Book  (Jan 2000)  Page(s) 234.  
 
Anglet Hybrid Tree Peony. Saunders [no date given]. A single yellow and rose hybrid

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...
'Angelet,' (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, 'Angelet', (Saund. 1950), [Gardens] Scott Foundation