Book  (1847)  Page(s) 145.  
 
Rosa Bourboniana....Henry Clay (Raabe), pale blush, strong growth, perfect form, very distinct.

Magazine  (1845)  Page(s) 71.  
 
Peter Raabe.....exhibited a fine scarlet seedling Bourbon rose raised from ‘Mme. Desprez’ at a late show of the Pennsylvania Horticultural Society.
[courtesy Brent C, Dickerson, Roll Call: The Old Rose Breeder. p438]

Magazine  (Feb 1844)  
 
At a late meeting of the Pennsylvania Horticultural Society, held in December last, the committee on New Plants, Flowers, Fruits and Vegetables, presented their annual report, and from it we extract that portion relating to new flowers:...
11. A dozen seedling carnations, and a seedling everblooming rose raised from the seed of Bourbon Madame Desprez-named Henry Clay-exhibited by Peter Raabe.