Book  (1936)  Page(s) 395.  
 
von Lade, Baron (HT) Welter 1903; K. Aug. Viktoria X Psse de Béarn; pure carmine, lasting, large, double, globular, solitary, long stems, upright, many thorns, growth 6/10

Magazine  (20 May 1911)  Page(s) 243.  
 
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...
Baron von Lade... H.T., Welter, 1903, Kaiserin Augusta Victoria X Princesse de Bearns

Book  (1910)  Page(s) 195.  
 
Baron Lade (Hybrid Tea), clear carmine-red. [Paul lists it as one of the "New Roses of 1902-1903.]

Website/Catalog  (1906)  Page(s) 10.  
 
Novelties in Roses For 1905.
Baron Lade (Hybrid Tea). Described as a red Kaiserin Augusta Victoria; flowers carmine, large and freely produced; an excellent variety for bedding and cutting.