Book  (1937)  Page(s) 74.  
 
Marie Zahn HT (Dr. Müller 1887) [pollen quality] 61%

Book  (1936)  Page(s) 766.  
 
Zahn, Marie (HT or bourbon) Dr. Müller 1887; (R. d. Iles Bourbon X Perle des Jardins) X Mar. Niel X (P. Notting X Safrano); silvery light pink, shaded carmine, base yellowish, large, double, cup form, floriferous, repeats, broad light green foliage, growth 7/10, upright. Sangerhausen

Magazine  (1903)  Page(s) 38.  Includes photo(s).
 
Marie Zahn ...a cultivar of Dr. Müller ((Reine de lîle de Bourbon X Perle des jardins X Maréchal Niel)) x (Pierre Notting X Safrano), illustration 5, is a rose which fullfills all requirements for breeding. The habit, the floriferousness, the beautiful large calyx (figure 6), united with rich but not too full filling, so that the rose expands also in rainy weather and does not ball, as well as the right relation of stamens to stygmas regarding number, position and especially length (see the illustrations). the easy and important seed production, the form of the hip, which prevents as much as possible the start of rot, the fast maturation of the fruit, the easy germination of the seed, all that are decisive moments for breeding, so that I give this rose a very high standing, as the colour of the bloom is also strikingly beautiful. 

Magazine  (1899)  Page(s) 37.  
 
Exhibition in Stuttgart ....Very interesting was the collection of Dr. Müller-Weingarten, who showed about 20 varieties. Especially liked were Johanna Sebus and Marie Zahn, which are already in commerce, but not less valuable seems a yellow-red brilliant long-budded hybrid tea. Dr. Müller fetilizes ...only with crossings of his own breeding.

Magazine  (1897)  Page(s) 29-30(photo), 33.  Includes photo(s).
 
p. 29: The following depition of a rose crown is from the rose garden of Dr. Müller-Weingarten. It is the variety Maria Zahn, which will be commercialized this year.

p. 33: Breeder: Dr. Müller-Weingarten. Maria Zahn. (Hybrid of Bourbon-Tea) Crossing of a hybrid: (Reine des Iles Bourbon x Perle des Jardins), fertilized with Maréchal Niel; this seedling was then fertilized with a seedling which resulted from a crossing of Pierre Notting x Safrano. Vigorous growth, bushy, large glossy light green foliage. Bloom large, double, cupped. Bud long pointed, expands easily; colour light silvery pink shaded carmine, base yellowish; floriferous, hardy.