Magazine  (Sep 1977)  Page(s) 20.  
 
"Botanical Descriptions of 40 Saunders Lutea Hybrids" by Dr. David Reath and Silvia Saunders
...These descriptions aim to provide the nurseryman and the average gardener with a means of determining the differences between the hybrids, many of which are very similar indeed...
Daffodil—Small rosette, 4-5 rows of petals, clear light yellow. Flares none. Filaments cream (at base), to reddish, uneven lengths. Stigmas cream; sheath cream. Foliage light green.

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...
'Daffodil,' (1948)

Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Hybrid lutea, Yellow, 'Daffodil' (Saund. 1948), [Nurseries] William Gratwick