Magazine  (Sep 1977)  Page(s) 22.  
 
"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...
Tiger Tiger—Single; 10-14 petals, dusky purplish-rose with creamy tones. Flares very dark. Filaments same color as petals. Stigmas cream or rosy-cream; sheath purplish-crimson. Anthers "naked", unever lengths; carpels about 10. Foliage and stems tinged bronzy.

Article (magazine)  (Jan 1955)  Page(s) 25.  
 
Varieties Raised in America. All by Professor Saunders...
The "Banquet Group." Generally reddish, but with yellow undertone, single to double...
'Tiger, Tiger,' (1948)

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.
Tiger Tiger, Semi-double, orange red. 1948.

Book  Page(s) 32.  
 
Tiger Tiger 16538 in 9.13 row 10