Book  (Apr 1999)  Page(s) 402.  
 
Frau Philipp Siesmayer Hybrid Tea. Lambert 1908. Parentage: 'Mme. Caroline Testout' x 'Erzherzogin Marie Dorothea'... yellow, suffused with pink...

Book  (Apr 1999)  Page(s) 556.  
 
Frau Philipp Siesmayer Hybrid Tea. Peter Lambert 1908

Book  (1936)  Page(s) 664.  
 
Siesmayer, Frau Philipp (HT) Lambert 1908; Testout X Erzh. Maria Dorothea; glossy orange-pink, large, semi-double, flat, solitary or up to 3, fragarnce 5/10, floriferous, repeats, long stems, growth 7/10, upright, 1, 50 m., large bush, hardy. Sangerhausen

Book  (1914)  Page(s) 276.  
 
Frau Philipp Siesmayer, H.T., yellow

Magazine  (10 Jun 1911)  Page(s) 278.  
 
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...
Frau Philip Scismeyer [sic]... Hybrid Tea, Lambert, 1908, Caroline Testout X Erzherozin M. Dorothea

Website/Catalog  (1911)  Page(s) 8.  
 
New Roses from 1910. Frau Philipp Siesmayer yellow suffused pink, buds large, full and conical; beautiful, free-flowering.