Book  (Apr 1993)  Page(s) 366.  
 
Mary Wheatcroft Hybrid Tea, deep copper, 1945, 'Mrs. Sam McGredy' x 'Princess Marina'; Robinson, H. Description.

Book  (1978)  Page(s) 91.  
 
Mary Wheatcroft which they [Wheatcroft Brothers] kept until 1945, after which their energies became fixed on Meilland's varieties. 'Mary Wheatcroft' was one of the best roses out of a reluctant mother: 'Mrs Sam McCredy' x 'Princess Marina', that is if Herbert's memory was right, for it was in his head that the parentages were filed, and I would not bet very heavily on factual accuracy down to the finer points.

Book  (1961)  Page(s) 118.  
 
W. C. Thorn. What's In a Name. the Wheatcrofts have used family names for a few of their many introductions. Beginning with 'Mary Wheatcroft' for Alfred's eldest daughter....

Book  (1950)  Page(s) 143.  
 
Dr. A. S. Thomas.  A Victorian Summary.
Mary Wheatcroft (one plant, one year) is not very distinct from Mrs. Sam McGredy.

Website/Catalog  (1949)  Page(s) 7.  
 
Novelty Roses 1949. Mary Wheatcroft (HT. Wheatcroft 1947) Described as an intensified 'Mrs. Sam McGredy', with deep copper blooms borne above shiny bronzy foliage. The flowers carry 25 petals while the stems are very thorny. A very beautiful variety. Will probably do best in dry or cold climates. 10/6 each.