Book  (2007)  Page(s) 345.  
 
Moonbeam, HT, dy, 1950, [seedling x McGredy's Yellow], Robinson, H; int. by Baker's Nursery ... short description

Note: Ruled extinct by the American Rose Society 4/92

Book  (1958)  Page(s) 257.  
 
Moonbeam. HT. (Robinson; int. Baker's Nurs., 50.) Unnamed seedling X McGredy's Yellow. Large, high centered, fragrant, deep golden yellow. Fol. dark, glossy. Profuse bloom.

Book  (1953)  
 
p79.  Dr. A. S. Thomas.  Yellow Roses.
Moonbeam is said to be a seedling from and an improvement on McGredy's Yellow. My two plants of Moonbeam are, as yet, only a few months old and so I cannot say more than that the colour is similar, the form is good, and the growth is apparently vigorous. 

p130.  Dr. A. S. Thomas.  New Roses.
Moonbeam (Robinson, 1950) is similar in most respects to McGredy's Yellow, but is said to be superior to it. A few more petals and better constitution than the older rose would be welcome—has this new rose got them?

p138. Miss Pat Mason, Auckland N.Z. 
Moonbeam, a seedling from McGredy's Yellow, has come with excellent overseas reports. Blooms observed were very similar, in colour and type, to the parent; growth is reasonably good. It is hoped that this new variety will not display the temperamental habits of McGredy's Yellow.

Website/Catalog  (1953)  Page(s) 10.  
 
Novelty Roses 1952. Moonbeam (HT. Robinson 1950) Large, clear yellow, fragrant blooms of 35 petals, fading lighter. Good in autumn. 10/6 each.

Book  (1952)  Page(s) 15.  
 
Harry H. Hazlewood.  The New Roses of 1952. Moonbeam (Robinson, 1950). A seedling from ‘McGredy's Yellow’ with 35 clear yellow petals fading lighter. The growth is vigorous with glossy foliage. A very promising variety.

Magazine  (Sep 1951)  Page(s) 3. trimester, p. 93.  
 
Registration Internationale des Roses Nouvelles en 1950 Sous le contrôle de la National Rose Society, de l'American Rose Society et de la Société Française des Roses ...
Reg. No. 153; Moonbeam; Enregistrées par H. Robinson; Obtenues par H. Robinson

Magazine  (Oct 1950)  Page(s) 4. trimester, p. 122.  
 
Registration Internationale des Noms de Roses .... MOONBEAM. HT. Fisher ; Arnold-Fisher C^o. 
[Very probably a transciption error - copying the entry for 'Merry-Go-Round' two line above]