Book  (2007)  Page(s) 262.  
 
Lady MacGregor. HT, 1911, Williams, A, [Boule de Neige x a tea]

Newsletter  (1994)  Page(s) 16. Vol 3, No. 3.  
 
Lady MacGregor. HT. 1911. A. Williams, Q. Boule de Neige x Tea.

Book  (1951)  Page(s) 121.  
 
Doreen Woodroffe. A Queensland Rosarian Looks Backward. At Runcorn, Alfred Williams raised many roses, generally naming them after keen flower lovers. Lady Macgregor was one of the sweetest scented roses.

Book  (1941)  Page(s) 96.  
 
Editor. [T. A. Stewart] Roses of Australia. Additional Australian Roses. A. Williams, Queensland. 1911. Lady MacGregor. H.T. Boule de Niege x Tea.

Article (newspaper)  (30 Apr 1912)  Page(s) 6.  
 
Acting upon an invitation from Mr. Alfred Williams, a number of members of the Queensland Horticultural Society paid a visit to that gentleman’s nursery at Runcorn on Saturday afternoon to inspect the seedling roses with which Mr. Williams has been very successful. Some nice blooms of the varieties ‘Lady MacGregor’ ……………..