Magazine  (Sep 1963)  Page(s) 26.  
 
Originations of W. S. Bockstoce [Included with his obituary]
Note: All these are hybrids of Officinalis Rubra and some lactiflora variety.
Mary E. Hall (1935). D. E. P. Early double pink bomb.
Note: Also listed as Mary E. Hale and Bulletin 91 says 1933 and red, but this was an error.