Orchelle, R. L. (15 May 1915). "The Soul of England". The Vital Issue. 2 (20): 4. Archived from the original on 19 May 2015. Retrieved 15 December 2014.
Lubin, David M. (September 2011). "Losing Sight: War, Authority, and Blindness in British and American Visual Cultures, 1914–22". Art History. 34 (4): 796–817. doi:10.1111/j.1467-8365.2010.00847.x.
Orchelle, R. L. (15 May 1915). "The Soul of England". The Vital Issue. 2 (20): 4. Archived from the original on 19 May 2015. Retrieved 15 December 2014.