Book  (1936)  Page(s) 407.  
 
Leader (HT) E. G. Hill 1924; sport of Premier; cherry-red, otherwise like Premier. Sangerhausen

Magazine  (Oct 1929)  Page(s) 134.  
 
Rosiers hybrides de thé ...  Leader (E.-G. Hill & C°). — Fleur rouge cerise, coloris résistant, très grande, pleine de longue durée. Très florifère. Variété méritante.

Website/Catalog  (1928)  Page(s) 15.  
 
Hybrid Teas, Teas  and Pernetiana.
Leader. Hybrid Tea. (E. G. Hill & Co., 1924.) Sport of Premier, color deep cerise-red with all the fine qualities of the parent.

Magazine  (1928)  Page(s) 211.  
 
Columbia (HT) E. G. Hill 1919) Ophelia X Mrs. George Shawyer....
p) Leader HT (E. G. Hill 1925) Sport of Columbia

Website/Catalog  (1926)  Page(s) 27.  
 
New Roses for 1926. Leader (HT. E. G. Hill) A grand cerise red sport of 'Premier' that holds its colour well. Sweetly scented. Not quite so full as 'Premier' but has all the qualities of that rose. Open flower is of immense size and very beautiful; vigorous. 4/- each.
Much like 'Red Premier'.

Magazine  (Nov 1924)  Page(s) 123.  
 
Leader. H. T. —- Un jeu provenant de « Premier », enregistré par l'E.-G. Hill C°, de Richmond, Indiana. Possède toutes les qualités du rosier dont elle provient, mais elle a une couleur « d'un bon rouge ».

Book  (1922)  Page(s) 9.  
 
The Committee on Registration reported the following applications since last meeting: Leader, by The E. G. Hill Co.; Joan Frueh, by Chas. Frueh & Sons; Heart of Gold (W.M. 5), by American Rose Society.