William Henry Welch,April 8,1850,to April 30,1934

Flexner S. Flexner J. T. (1941) William Henry Welch and the Heroic Age of American Medicine. New York; p. 165.

Williams Harley (1949) The Healing Touch. London; p. 350. see also Bulletin of the History of Medicine, 1950, 24, 305–51.

Supplement to Bulletin of the Johns Hopkins Hospital, 1950, 87. No. 2. Welch Memorial Number.