Book  (1936)  Page(s) 217.  
 
Dreer, Climb. William F. (cl. hybrid lutea) ? 1925; sport of above [William F. Dreer]; climbing habit.

Website/Catalog  (1928)  Page(s) 3, 11.  
 
p. 3: Introduction of Our Rose Creations 1927 - 1928
CLIMBING WILLIAM DREER, H. T.
Also our 1927 creation and another pride of Pacific Rose Company. Being the sport of the high class rose William F. Dreer, it retains all the merits of its parent rose. Blooms are of beautiful yellow, developing from buds of silvery-pink with deep golden base. Well established, high climbing habit with glossy, attractive foliage.
ALL THESE NEW ROSES OF OUR OWN CREATION ARE REGISTERED WITH THE AMERICAN ROSE SOCIETY

p. 11: CL. WILLIAM F. DREER, Cl. H. T.
Our 1927 creation—another pride of the Pacific Rose Co. Being the sport of the high class rose Wm. F. Dreer, it retains all the merits of its parent rose. Blooms are of beautiful yellow developing from buds of silvery-pink with deep golden base. Well established high climbing habit with attractive glossy foliage.
Reduced for the first time to $2.00 each

Website/Catalog  (1926)  Page(s) 4, 7.  
 
p. 4: Our Wonderful Achievement of New Product in Roses — 1926-27
CLIMBING WILLIAM DREER, H. T.
Sport of bush Wm. Dreer, 1927.
Beautiful yellow color, excellent growth, strong stem. Very hardy and vigorous.

p. 7: CLIMBING WILLIAM DREER, H. T., Yellow (new, 1927, Pacific Rose Co.)  ...Price per Hundred Budded "A"  $350.00