Newsletter  (1994)  Page(s) 16. Vol 3, No. 3.  
 
Sir Robt. Duff. T. Clg. 1893. Johnson, Vic. Gloire de Dijon sdlg.

Book  (1941)  Page(s) 96.  
 
Editor [T. A. Stewart]. Roses of Australia. Additional Australian Roses. 1893. Sir Robt. Duff. Clb. T. (Johnson, Victoria. Gloire de Dijon seedling.

Article (newspaper)  (4 Feb 1910)  Page(s) 110.  
 
Arthur Moore, Hunter’s Hill, N.S.W.  Some Australian roses. 
T.  Sir Robert Duff  Bennett NSW 

Johnson I have located in Victoria, but I have no knowledge of his work or his roses.  They are also to be obtained from the Royal Nurseries.