Book  (1995)  Page(s) 51.  
 
Sir Lancelot has a very pleasing orange colour, but is also prone to black spot...

Book  (Apr 1993)  Page(s) 554.  
 
Sir Lancelot Floribunda, apricot & apricot blend, 1967, 'Vera Dalton' x 'Woburn Abbey'; Harkness. Description.

Book  (1988)  Page(s) 114-115.  
 
Sir Lancelot Floribunda. Harkness 1967. Susceptible to mildew and blackspot. 'Vera Dalton' x 'Woburn Abbey'.

Book  (1985)  Page(s) 163.  
 
....in May 1962 we began our career as hybridists...It was in 1964 that we saw the results in the open air, and began to select our first introductions..... The most popular, because more conventional, were helped by a fortunate thought in naming them in association with one another. 'King Arthur', 'Guinevere', 'Sir Lancelot' and 'Merlin'. We introduced them in 1967, five years from the time of pollination...

Book  (1973)  Page(s) 148.  
 
Dr. A. S. Thomas Victoria.  The New Ones. 
Sir Lancelot. Florib. (Harkness, 1967). ('Vera Dalton' x 'Woburn Abbey'). Semi-double blooms in clusters of 3 to 5. Unique and very pretty light apricot colouring.

Book  (1972)  Page(s) 220.  
 
Harkness advertisement. Raisers' eye View. 'Sir Lancelot' is popular but not healthy enough.

Book  (1971)  Page(s) 153.  
 
Mr. W. G. Treloar, Victoria. The New Ones. 
Sir Lancelot Floribunda. (Harkness). Growth is compact and healthy and it blooms freely. The semi-double blooms are an unusual shade of apricot-yellow and this rose has many awards to its credit including R.N.R.S. Trial Grounds Certificate.

Book  (1970)  Page(s) 155.  
 
Mr. W. G. Treloar, Portland, Victoria. The New Ones.  
Sir Lancelot An apricot-orange semi-double Floribunda with a unique colour and healthy growth.