Divisional insignia designed in 1916, and worn by the 66th (2nd East Lancashire) Division during the First World War. The insignia was revived for the 66th Infantry Division in 1939, during the Second World War, but was never actually worn.
(1986)  British Battle Insignia (1) 1914-18, Oxford:  Osprey Publishing  
Chappell, Michael (1987)       British Battle Insignia 1939–1940, Men-At-Arms, 2, London:  Osprey  ISBN:  978-0-85045-739-1. 
Cole, Howard (1973)       Formation Badges of World War 2: Britain, Commonwealth and Empire, London:  Arms and Armour Press  OCLC:   464094349. 
Swinton, Ernest Dunlop (1936)       Twenty Years After: The Battlefields of 1914-18; Then and Now, II, London:  G. Newnes  OCLC:   4820658. 
The 66th (East Lancashire) Division: September-November 1918. Delville Wood Memorial. Retrieved on 12 April 2016.