Magazine  (2020)  Page(s) 21. Vol 42, No. 2.  
 
Sue Zwar. ....old Hybrid Teas down Petticoat Lane.
White Ensign (McGredy, 1925) a real favourite of mine, has magical creamy white buds opening to even more magical flat frilly flowers. (photo p. 35)

Magazine  (2019)  Page(s) 51. Vol 41, No. 1.  
 
Margaret Furness.  Tea, Noisette and China Mislabels in Australia
Roses sold here as Niphetos are mostly Mrs Herbert Stevens, though White Ensign and what I think is “Mystery Cream Tea” may also arrive with that label

Book  (2008)  Page(s) 150.  Includes photo(s).

Book  (2004)  Page(s) 59.  Includes photo(s).
 
'White Ensign'....

Book  (2000)  Page(s) 625.  Includes photo(s).
 
‘White Ensign’ /’Monty’s White Tea’ = Hybride de Thé – blanc, remontant. Les fleurs de ce vieil hybride de thé pourraient aisément passer pour des roses thé. Sveltes en bouton, elles s’éploient en corolle pleine et soyeuse au parfum délicat, s’ouvrant presque à plat sur un fouillis de pétales blancs, ombrées de crème au centre. D’excellente tenue, elles sont idéales en vase et leur cœur crème chamoisé glisse une touche de distinction dans un bouquet… feuillage vert franc, sain et abondant.. buisson robuste et touffu, aussi gracieux en massif qu’entouré de bulbes et de vivaces. McGredy, UK, 1925. Ascendance inconnue.

Book  (Dec 1998)  Page(s) 625.  Includes photo(s).
 
White Ensign. (syn: “Monty’s White Tea”) Modern. Large-flowered hybrid tea. White. Repeat-flowering. The flowers of this rose have a very Tea-like form. From nicely shaped buds they open to very double, flat, white, many petalled flowers with a cream center. There is some fragrance. The foliage is healthy, mid-green and plentiful, and the production of flowers is very good. It enjoys vigorous and bushy growth and there are no disease problems. This is an excellent rose for picking as the creamy buff color in the center of the flowers holds its color well and looks lovely in arrangements. It is a popular rose for planting in beds and borders and for use among bulbs and perennial plants. Zones 5-10. McGredy, UK 1925. Parentage unknown

Magazine  (Nov 1997)  Page(s) 36.  Includes photo(s).
 
“White Ensign” Bred in Northern Ireland in 1925, this white hybrid tea is a stunner with large double blooms that have a slight perfume. It is recurrent-blooming and its growth is vigorous. It will grow to approximately 1.5m tall. Steve Beck (Melbourne’s Roses & Friends) lists it as one of his top two among this bunch. It might be hard to find a specimen, but the search will be worth it.

Website/Catalog  (1995)  Page(s) 24.  
 
White Ensign. HT 1925. Medium height, spreading habit, fully double, fragrant. Large rosettes of creamy-white. Lovely effect.

Book  (1958)  Page(s) 425.  
 
White Ensign. HT. (McGredy, '25.) Large, very dbl., globular, slightly fragrant, white. Fol. leathery, dark, glossy. Vig.

Book  (1957)  Page(s) 141.  
 
Allen Brundrett, Narre Warren North, Vic: White Ensign has a rather short bud, but is well filled with petals, is free flowering and hardy. At its best the blooms when displayed are sometimes mistaken for gardenias. It is a variety that can be appreciated either as a half open bud or as a full blown flower.