Magazine  (Sep 1977)  Page(s) 21.  
 
"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...
Narcissus—Single; 10-16 rounded petals; flowers not large. All yellow, with no flares. Flares none. Filaments cream to reddish. Stigmas cream-pink; sheath cream. Sepals (under the flower) rosy. Foliage, large, broad and slightly ruffled. 

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.
'Narcissus,' (1941)

Article (magazine)  (Jan 1955)  Page(s) 59.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Lutea hybrid, Yellow, 'Narcissus' (Saund. 1941), [Gardens] Scott Foundation

Magazine  (Mar 1954)  Page(s) 22.  
 
Hybrid Tree Peonies
...By far the most important work with these hybrids has been done by Prof. A. P. Saunders and his originations now number about 80. Their color range is truly remarkable. [...]
The list of hybrid tree peonies following is up to date as far as we could make it.
Originations of A. P. Saunders, Clinton, N.Y.
Hybrids of suggruticosa, lutea and Delavayi.
Narcissus, Single, pale yellow. 1941.

Book  (1944)  Page(s) 104.  
 
The next year 1945
Make a master list of tree peonies to be grafted and & check them off as done.
For 1944
...Narcissus 11953 8+4+3+3 [grafts]

Book  (1941)  Page(s) 71.  
 
Narcissus (11953) Mother plant in 14.2 now 6 L.D. [lutea delavayi] x pink t.p. [tree peony] Clear pale yellow, ...towards the center. Not-large. A fine ...
1939 8 grafts in 21 (3) 6 took
2 " in 21 (4) 2 "
...1944 Narcissus ...it is cut in a ...before ..here at breakfast......(New Canaan) is really lovely. It is a dull yellow with pink ...on the lower half of the petals, a pale but the ....alll & a really beautiful thing.

Book  Page(s) 4.  
 
Lutea Hybrids
11953 "Narcissus" Bright buff yellow extra extra Graft. Clear pale yellow, almost no onglets.
1939 8 graft in 21 (7) 2 in 21 (4) 1940 Boston. Pale yellow, rosy ...center. No onglets..