vol 3,1947, pp 443–449 (portrait of Hooper facing p 444) Denis Boyles, Everything Explained That Is Explainable: On the Creation of the Encyclopaedia Britannica's Celebrated Eleventh Edition, 1910-1911, 2016. Hooper is a prominent figure throughout. Alexander Coleman and Charles Simmons, All there is to know, 1994, pp 17–24. 1859 births 1922 deaths American editors Encyclopædia Britannica American publishers (people)