Book  (1981)  Page(s) 67.  
 
P.H. Wright, Saskatoon, Canada crossed R. blanda with 'Betty Bland' and produced 'Helen Bland', 1950.

Book  (1967)  Page(s) 46.  
 
Some All-Canadian Roses
by Fred Blakeney, Victoria, B.C.
Mr. Percy Wright of Saskatoon, Sask., must be considered one of the foremost hybridizers of species and near species roses in North America. He has been working on these roses for many years, and knows the reactions of various hardy roses when crossed with species roses.
His objective has always been to produce worthwhile garden roses that are hardy enough to withstand the extremely low temperatures of the Prairies in winter. [...]
Here is a list of Mr. Wright's originations in chronological order of introduction:
1950 "Helen Bland", semi-double, rose pink, with deeper center in small clusters. Stems reddish brown and thornless.

Website/Catalog  (1949)  
 
"HELEN BLAND* - our seedling of Betty Bland, that differs scarcely at all in flower, but is completely thornless. Should become very popular."

Percy Wright Catalogue - Hardy and Semi-Hardy Roses - ca 1949 p.6