Magazine  (2020)  Page(s) 36. Vol 42. No. 4.  Includes photo(s).
 
Billy West. Connecting the Dots: "Penrose" to Indian Summer. 
Seeing "Penrose” for the first time, I thought it special and very beautiful. It was among the hundreds of roses that filled an enormous room at historic ‘Woodbridge House’ - blooms gathered from older gardens in the Guildford area. Founded in 1829, Guildford is one of the oldest suburbs in Perth and this rose display had been organised by local community members and members of the Australian Garden History Society.
“Penrose” was collected from a nearby property of that name. It is the home of Penny Hooper who loves the rose she inherited when she and her family moved to ‘Penrose’. Nurseryman Peter Ellis propagated budwood to ensure the rose was conserved and shared, and it was he who gave it the study name........

Book  (1965)  Page(s) 190.  
 
Indian Summer Cl.HT. (Duehrsen; int. H&S, '38) Ednah Thomas x Autumn.

Bud pointed; fl. large (5in.), dbl. (20 - 30 petals), open, very fragrant, orange streaked red; long stem. Fol. glossy, leathery, dark bronze. Very vig. cl. (12 - 18 ft.); profuse recurrent bloom. (28) Pl. Pat. 448 (expired).

Book  (1965)  Page(s) 41.  
 
S. J. Samuels. Wondrous Ways.
Mention has been made of the strange behaviour of the true climber 'Indian Summer', where, following the appearance of a white bloom, budding on from the flower stem produced a non-climbing bush type rose, and that further budding on produced plants of both habits of growth. After a lapse of about twelve years, a climbing plant this year came forth with a flower of about 75% satiny cream petals, while the rest were of the exotic colouring of the parent. It could be that, after the lapse of so many years, the colour change has again become dominant in the variety. All the available buds have been worked on to root-stocks. It will be recalled that 'Rima' appeared originally in part of a flower only, and the 'Lady Zia' sport also, so the result of this latest budding from 'Indian Summer' is awaited with some impatience and may give further proof that sporting can be isolated from part only of a flower.

[No evidence has been found to date that this unnamed New Zealand cream sport was ever introduced]

Book  (1958)  
 
p166. Indian Summer Cl.HT. (Duehrsen; int. H&S, '38) Ednah Thomas x Autumn.

Bud pointed; fl. large (5in.), dbl. (20 - 30 petals), open, very fragrant, orange streaked red; long stem. Fol. glossy, leathery, dark bronze. Very vig. cl. (12 - 18 ft.); profuse recurrent bloom. (28) Pl Pat. 448 (expired).

p447. Patented Roses. Indian Summer 448 (expired). Issued Feb 11, 1941 to Frederick Huber Howard, Montebello, Calif.

Book  (1955)  Page(s) 144-145.  
 
Mr S.J. Samuels of Nelson, N.Z. The Rose Forum. A Report on Some Newer Roses

The bud taken from what appeared to be a white sport of Indian Summer, and reported upon by Mr C.S. Mayson in the "Rose Annual" of 1953, grew into a very vigorous climber with a mass of blooms of a salmon-pink colour, appearing so far to be a much lighter version of the burnt orange of Indian Summer. A further bud worked from the same twig last spring has so far shown no inclination to climb, but showed a bloom of a different shade of pink to the others. The original twig finally died last summer.

Book  (1953)  Page(s) 150.  
 
Mr C.S. Mayson, of Nelson District Rose Society, NZ. Notes from Various Sources

Sports have been reported by two of our members. Mr J. Samuels has a climber, Indian Summer , which has a branch bearing a white flower, the original being reddish orange. He intends to bud this on to stock and see how it develops.

Book  (1952)  
 
p132. Indian Summer Cl.HT. (Duehrsen; int. H&S, '38) Ednah Thomas x Autumn.
Bud pointed; fl. very large (5in.), semi-dbl. (20 - 30 petals), open, burnt-orange streaked red; long stem. Fol. large. glossy, leathery, dark bronze. Very vig. cl. (12 - 18 ft.); profuse blooms all season. Pat. 448.

p351. Patented Roses.Indian Summer 448. Issued to Frederick Huber Howard, Montebello, Calif., 1941.

Book  (1947)  
 
p107. Indian Summer CHT. (H&S, '37) Ednah Thomas x Autumn. (Pat. 448.)
Bud pointed; fl. very large, dbl., open, burnt-orange streaked red; long stem. Fol. large, glossy, leathery, dark bronze. Very vig. cl. (12 - 18 ft.); profuse bloom all season.

p279. Patented Roses. Indian Summer 448. Issued to Frederick Huber Howard, Montebello, Calif., 1941.

Book  (1942)  
 
p155. Proof of the Pudding Summary. Indian Summer Does better in warm climate.

p184. Indian Summer CHT. Bic. (Howard & Smith '37). Pat 448. ARA '37; PP '38, '39, '40, '41.
Pfister Ill. (1pl., 2 yr.) is still waiting to see blooms. The plants froze badly the first winter. Shields Utah (2 pl., 2 yr.) pronounces it the finest foliage she has ever seen, but the flowers are not numerous enough for her. Kester Calif., (1 pl., 2 yr.) declares the poor form and fading of blooms offset any good points. Simmons, Calif., (1 pl, 1 yr.) claims it is the only rose he knows of that will grow satisfactorily without mildewing. Partymiller Wash., (2 pl., 2 & 4 yr.) admires the buds but does not like the open flowers. They are not fragrant and he had to wait until last year for the plants to grow. They are now 8 and 10 ft. tall.

Book  (1942)  Page(s) 81.  
 
Dr A.S. Thomas. The Best of Recent Introductions
Indian Summer (Howard and Smith, 1937), one plant one year old: Strong climbing growth, good fancy colour, fair form.