Book  (1849)  Page(s) 32, supplement.  
 
Descriptive List of Roses.
List of roses that bloom only once in the season.
Climbing Roses. Rubifolia.
1875 Mrs. Henry Clay (Feast's)... cupped. Creamy white

Magazine  (Jul 1846)  Page(s) 246-247.  
 
Mr. [Samuel] Feast has lately raised one or two fine running roses, one of which, a cream-colored flower, he has named Mrs. Henry Clay.

Book  (1846)  Page(s) 105.  
 
Prairie Rose....Mrs. Henry Clay is an admirable creamy white flower, extra beautiful, and produced in immense clusters. It is worthy in itself, as well as for its connection with this noble family of native roses, of being dedicated to the eminently worthy lady of that man, who stands apart, marked out in the minds of all candid Americans, and by the world at large as the exalted combination of natural genius of concentrated political knowledge, of energy of character, and of generous devotion to his country's prosperity; thus presenting the concentrated amplitude of development, the veriest impersonification of Americanism [Prince must have spend more hours on this eulogy than on the descriptions of the whole section]