Book  (2007)  Page(s) 46.  
 
Australian bred R. gigantea Hybrids. A review as at October 2006 by Laurie Newman (Australian registrar). The findings below are based on research of some of the writings of Alister Clark between 1924 and 1942. There are anomalies contained in the papers, but on balance I believe the list to be conclusive.
Firstly, there are the three listed in American Rose (Sept, 2006, page 9, namely,
Courier (MR11 LCl.)
Kitty Kininmonth (MR11 LCl.) and
Tonner’s Fancy (MR11 LCl.)
Add ……..etc. and
‘Scorcher’ (MR11 Cl. HT) (Pollen parent should be R. gigantea)

Book  (2004)  Page(s) 169.  Includes photo(s).
 
Scorcher. Modern Climber – Bred by Australia’s Alister Clark and introduced in 1922, this rose is rarely seen elsewhere. The flowers are scarlet crimson to cherry red. They have a white base to the petals, and appear in a single flush in the spring. In its day it was one of the hottest reds available – there was not much by way of competition – but it looks rather dull by modern standards. The full blooms, with long petaloids in the center are nevertheless still arresting to the eye. Foliage is large, wrinkled and tinted with orange-red when new. The growth is moderately vigorous and disease-free. It is a good choice for a short pillar. (‘Mme. Abel Chatenay’ x seedling). Zones 6-10.

Book  (2003)  Page(s) 185.  Includes photo(s).
 
Scorcher (Clark, introduced by Hackett, 1922).

Book  (2003)  Page(s) 360.  
 
Scorcher ....The small glossy leaves indicate Rosa wichurana in its ancestry.

Book  (30 Sep 1999)  Page(s) 9.  Includes photo(s).
 
Scorcher – 1922. Mme. Abel Chatenay cross. Large flowered climbing rose. Semi-single, moderately large, slightly fragrant, scarlet-crimson flowers streaked white, can repeat flower.

Book  (Dec 1998)  Page(s) 540.  Includes photo(s).
 
Scorcher. Modern, large-flowered Climber. Dark red. The lightly fragrant flowers of this rose can range from a brilliant scarlet-crimson to a deep strawberry or cherry red. The early season bloom is magnificent, but there are no later flushes. The florets are semi-double and 4 in (10 cm) across. Large, wrinkled foliage adorns the vigorous bush, which can be trained as a climber or pillar reaching about 10 ft (3m) high. Hybridized by one of Australia’s most distinguished breeders of the first half of the twentieth century, ‘Scorcher’ may well have an honored place in the hearts of many Aussies despite fierce competition in this classification from later introductions such as ‘Altissimo’ or ‘Danse de Feu’. Scorcher’ is a cheerful addition to any garden. Zones 5-10. Clark, Australia, 1922. ‘Mme. Abel Chatenay’ seedling.

Book  (1997)  Includes photo(s).
 
p251 …..[a parent of ‘Cicely Lascelles’]

p252 …..[a parent of ‘Mary Guthrie’]

p253. Scorcher – Climbing H.T. 1922. ‘Mme. Abel Chatenay’ x unnamed seedling. “Large, semi-double, open, slightly fragrant, brilliant scarlet-crimson. Vigorous climber to 10 ft. Non-recurrent.” (Modern Roses). Notes kept by Alister’s gardener Sharp, suggest that the unnamed parent was R. Moyesii.
[see the 1941 reference for a mention of R. Moyesii]
The plant we have came from a winery at Coldstream and an old garden at Alexandra. It corresponds to a coloured photograph in Roses of the World in Colour (1937) by Horace McFarland, long-time editor of the American Rose Annual.

p254 …..[a parent of ‘Lady Somers’.]

Book  (1996)  Page(s) 135.  
 
Scorcher. Clark. Australia, 1922. Climber. Red. (Available from:) Bleak, Golden Vale, Hilltop, John ‘s World, Mistydown, Nieuwesteeg, Simms.

Book  (1994)  Page(s) 121.  
 
Scorcher Climbing Hybrid Tea. Clark 1922. 'Madame Abel Chatenay' x unnamed seedling... Notes kept by Alister's gardener, Sharp, suggest that the unnamed parent was R. moyesii

Newsletter  (1994)  Page(s) 15 Vol 3, No. 4.  
 
Scorcher. HT. Cl. 1922. Alister Clark. ‘Mme. Abel Chatenay’ seedling.