Book  (2007)  Page(s) 358.  
 
Niobe, F, w, 1942, J & P, [sport ofRosenelfe], flowers white, center sometimes flushed light pink

Book  (1942)  Page(s) 12.  
 
R. Marion Hatton.  The World's Novelties
A white sport of the Hybrid Polyantha Rosenelle has been named Niobe and is added to the growing list of Hybrid Polyanthas.