Broomhall, A.J. Hudson Taylor and Chinas Open Century. Book Two: Over the Treaty Wall. Sevenoaks: Hodder & Stoughton, 1982; Book Three: ”If I Had a Thousand Lives,” 1982 ; Book Four: Survivors’ Pact, 1984; Book Five: Refiner’s Fire, 1985; Book Six: Assault on the Nine, 1988; Book Seven, “It Is Not Death To Die!”
Stock, Eugene. The History of the Church Missionary Society in Three Volumes. London: Church Missionary Society, 1899.
Wikipedia, “Frederick F. Gough.” https://en.wikipedia.org/wiki/…
Wylie, Alexander. Memorials of Protestant Missionaries to the Chinese. Shanghai: American Presbyterian Mission Press, 1867.