Book  (Apr 1999)  Page(s) 132.  
 
Olavus Moss. Nielsen 1932. Parentage: 'Cristata' (Moss) or 'Blanche Moreau' x 'Mme. Edouard Herriot'... salmon pink...

Book  (1936)  Page(s) 523.  
 
Olavus (moss) Nielsen 1932; Cristata or Bl. Moreau X Mme. Ed. Herriot; bright salmon-pink, medium size, semi-double, flat, solitary or up to 3, fragrance 5/10, once-blooming, little repeat, growth 7/10, upright. Sangerhausen

Magazine  (1932)  Page(s) 47.  
 
4 new hybrids from Olav Nielsen, in fact the old moss rose Blanche Moreau crossed partly with Pernetianas, partly with hybrid teas:
1. Olavus (allegedly Mme Edouard Herriot x Blanche Moreau), typical moss rose, semi-double, strong fragrance, medium size, light red, but the pollen parent cannot be true.