Book  (2011)  Page(s) 213.  
 
location G:201, Marie Isakoff, Dubreuil 1901, HT, apricot to yellow, large, double, medium height (60-80 cm)

Book  (Apr 1999)  Page(s) 422.  
 
Marie Isakoff Hybrid Tea. Dubreuil, 1901. Seedling of 'Mme. Caroline Testout'. The author cites information from different sources... Orange yellow... apricot yellow fading to pale canary at full expansion...

Book  (1936)  Page(s) 364.  
 
Isakoff, Marie (HT) Dubreuil 1901; Testout X ? ; apricot, fades to canary-yellow, large, double, flat up form, solitary, floriferous, growth 7/10. Sangerhausen

Book  (1927)  Page(s) 42.  
 
H. R. Darlington. Roses and Their Parentage.
Seedlings of 'Caroline Testout'. Marie Isakoff Yellow. Other parent unnamed seedling

Book  (1922)  Page(s) 232.  
 
Hybrid teas ...Light yellowdeep yellow to orange .... Marie Isakoff ....

Magazine  (15 Jul 1911)  Page(s) 338.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Marie Isakoff... Hybrid Tea, Dubreuil, 1901, Seedling Caroline Testout

Book  (1910)  Page(s) 330.  
 
Marie Isakof [Hybrid Tea]; flowers deep apricot, changing to pale canary-yellow, ;arge and cupped; wood and foliage of 'Caroline Testout'; growth vigorous.

Magazine  (1 Jun 1908)  Page(s) 91.  
 
Les Roses à l'EXposition d'Horticulture du 22 Mai 1908, au Cours-la-Reine. .... Marie Isakoff ....

Magazine  (Mar 1905)  Page(s) 5.  
 
Varieties which have not been affected by strong frosts in January ... to -15^oR [= -19^oC].... Marie Isakoff....

(1905)  Page(s) 70.  
 
Rosiers Nouveaux pour 1902...Rosiers hybrides de thé ....
2364 Marie Isakof (Dubreuil), fl. gr. pl.; jaune abricoté passanu au canari pâle ... Rez-de-terre 1.- F., Demi-tiges 1.75 F, Hautes tiges 2.50 F.

[listed 1909, but not in 1911]