Book  (1936)  Page(s) 675.  
 
Souvenir (HT) W. R. Pierson or Nicolas 1932; sport of Talisman; golden-yellow, medium size, very double, lasting, fragrance 5/10, growth 6710, upright. Sangerhausen

Article (misc)  (2 Mar 1935)  Page(s) 90-91.  
 
Souvenir was a miserable failure, although I have tried it two years with plants from different localities. Under glass I have seen it have wonderful blooms.

Book  (1935)  Page(s) 16.  
 
Harry H. Hazlewood.  The New Roses of 1935.
Souvenir (Pierson, 1930) is a deep golden sport of 'Talisman', with 65 petals and promising as a very fine sort.

Website/Catalog  (1935)  Page(s) inside cover.  Includes photo(s).
 
Souvenir (Pernetiana) 1933 Fleur jaune d'or foncé, odorante. Ce sera une variété hors ligne pour la fleur coupée en raison de son grand rendement en fleurs parfaites et du beau bouton pointu sur un belle et forte tige élancée.

Website/Catalog  (1935)  Page(s) 42.  
 
New Roses 1935.  Souvenir (HT.  A.  N.  Pierson 1930). Sport of 'Talisman'. Deep golden buds opening to golden yellow blooms which hold their colour. Large glossy foliage, vigorous and upright growth. Fragrant 4/- each.
65 petals. Very promising.