Website/Catalog  (1908)  Page(s) 3.  
 
DOUBLE HERBACEOUS PEONIES SERIES D. 60 cents each
Isadore Leroy, (Verdier 1858) bright purple lake; fine.

Website/Catalog  (1906)  Page(s) 3.  
 
['Isidore Leroy' is not included in the 1906 catalogue]

Book  (1904)  Page(s) 3.  
 
Double Herbaceous Paeonies. ...Series C. 75 cents each.
Isidore Leroy, purple-lake.