Book  (2008)  Page(s) 41.  
 
S67 Simonet Dbl. Red

Book  (2008)  Page(s) 31.  
 
Another Simonet hybrid was S67. It was the progenitor of Quadra, 'Frontenac' and 'Nicolas'. With the progress of the breeding program the pedigree became more complex.

Book  (1953)  Page(s) 66.  
 
[In the list of hybrid rugosas] Double Red - 14
[This appears the most likely cultivar tested for the purposes of the Canadian breeding program, but the name is somewhat ambiguous.]