Magazine  (2012)  Page(s) 41. vol 34, No. 2.  
 
Eric Timewell. Frank Riethmuller’s Niece Elsie: ‘Helios’ and …. were probably lost because no one knew of them. In Elsie’s own words: [from Let’s Not Forget the Oldies, The NSW Rose, Autumn, 1968, p14] Some of the older [garden] varieties have proved to be hardy and seldom without blooms. I feel we do not see enough of them grown, and really good roses could pass into oblivion because new gardeners have neither seen nor heard of them.

Book  (1960)  Page(s) 102.  
 
Mr. Francis L. Riethmuller who receives the coveted award (the T. A. Stewart Memorial Award for 1959) has devoted much time and energy to roses since his retirement, fifteen years ago. He has done much hybridising and has distributed some very worthy varieties, as well as lesser-known varieties such as ...... and Helios.