Journal of the Royal Horticultural Society, Volume 15 page 30 (1900)
‘Scarlet Climber’ = Pol. Crimson Rambler x Tea Beauté inconstante. Crossed, 1896. Strong climber, flowering to ground.
‘Wall Flower’ = Pol. Crimson Rambler x Tea Beauté inconstante. Flower, larger and looser than in seed parent; growth, leaves, colour, and size, and autumn flowers from pollen parent.
Raised by G. L. Paul

Gardeners’ Chronicle p. 452, December 22, 1900
Messrs. Paul & Son, of Cheshunt:
The Wallflower.—This rose has excited the admiration of all who have seen it. It is the perfection of a hedge or wall Rose; its habit of growth being naturally somewhat flat, it lends itself easily to hedge or wall training. It flowers all along the shoots from base to tip, presenting a solid face of rosy-like crimson blooms; a most attractive colour. The flowers are much larger, somewhat lighter and softer in colouring than Crimson Rambler. It received the highest award (xxx) at the Royal Horticultural Society’s Conference on Hybridisation, 1899, under the name Scarlet Climber.

The J. Roy. Hort. Soc. entry indicates that 'Scarlet Climber' was different from 'The Wallflower' or 'Wall Flower', though of the same breeding.