Beresford, George Charles.“Biography Charles De Sousy Ricketts (1866-1931) & Charles Haslewood Shannon (1863-1937).”The Fitzwilliam Museum” Nov. 22,2020.

In this article, Beresford briefly introduces background information of Charles Ricketts and Charles Shannon. He highlights their individual academic background and also their relationship with each other. This article was particularly helpful in researching their agenda and inspirations in the publication of volume 2 of The Pageant.