Website/Catalog  (1909)  Page(s) 4.  
 
DOUBLE HERBACEOUS PEONIES. SERIES F. $1.00 each
Bertha, (Terry 1898) bright crimson, full double, large, late, very satisfactory.

Website/Catalog  (1908)  Page(s) 3.  
 
DOUBLE HERBACEOUS PEONIES SERIES C. 50 cents each
Bertha, (Terry) brilliant crimson, very large, full, double and late.

Book  (1907)  Page(s) 36.  
 
291. BERTHA; P. albiflora...(Terry)
(1) 1904, Harrison's Paeony Manual p. 42.
(2) 1905, Terry's Cat.
(3) Cornell Plot No. 129.

Book  (1907)  Page(s) 36.  
 
Bertha. Terry, 1898. Bright crimson, large, full double; late. Very satisfactory.

Website/Catalog  (1907)  Page(s) 3.  
 
Double Herbaceous Paeonies. Series C. 50 cents each
Bertha, brilliant crimson, very large, full, double, late;

Website/Catalog  (1905)  Page(s) [2].  
 
Bertha. Brght crimson, very large,full double, late. 25¢