Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, Pink, 'Dantenmon' (The Gate of Danten) (Chug. 1932), [Gardens] Univversity of Washington Arboretum, [Nurseries] William Gratwick