Book  (1936)  Page(s) 681.  
 
Sterling, Dad (HT) Türke 1910 [J. C. Schmidt]; Testout X Maréchal Niel; salmon and isabella-yellow, center reddish, base yellow, very large, well double, fine form, fragrance 7/10, floriferous, repeats, long stems, large foliage (Niel), growth 7/10, climbing, 1 m.

Website/Catalog  (1925)  Page(s) 83.  
 
Hybrid Tea Roses...Dad Sterling (Hybrid Tea). Vigorous. Isabella-yellow bloom with slightly reddish centre. 'Dad Sterling' is similar to 'Maréchal Niel' in habit and arming. Floriferous...Low-grafted garden plants 1 piece G.-M. [Gold-Mark] -.80  standards

[no longer listed in the 1929 catalogue]

Magazine  (1 Jun 1912)  Page(s) 88-89.  
 
DAD STERLING (J. C. Schmidt, 1911). Hybride de thé .— Madame Caroline Testout x Maréchal Niel. Arbuste très vigoureux et très florifère. Fleur grande, bien pleine, de forme parfaite, jaune isabelle à centre rougeàtre.

Magazine  (1912)  Page(s) 111.  
 
DAD STERLING, issue de Caroline Testout X Maréchal Niel (H. Thé); Schmidt, obt