Anon (1941). "The Celebration of the Sixtieth Anniversary of Dr. William Howell's Graduation from the Johns Hopkins University." Bulletin of the Johns Hopkins Hospital 68: 291-308.
   
Chesney, A. M., L. E. Holt, Jr., et al. (1961). "An Anniversary Tribute to the Memory of the Late William Henry Howell." Bulletin of the Johns Hopkins Hospital 109: 1-19.
   
Corner, G. W. William Henry Howell. Dictionary of American BIography. Supplement 3 (1941-1945).
   
Couch, N. P. (1989). "About heparin, or . . . whatever happened to Jay McLean?" J Vasc Surg 10(1): 1-8.
   
Davenport, H. W. (1982). "Physiology, 1850-1923.  The view from Michigan." Physiologist 24(1 suppl): 1-96.
   
Erlanger, J. (1945). "William Henry Howell, 1860-1945." Science 101(8): 575-576.
   
Fee, E. (1984). "William Henry Howell: physiologist and philosopher of health." Am J Epidemiol 119(3): 293-300.
   
Fye, W. B. (1984). "Heparin: the contributions of William Henry Howell." Circulation 69(6): 1198-1203.
   
Harvey, A. M. (1975). "Fountainhead of American physiology: H. Newell Martin and his pupil William Henry Howell." Johns Hopkins Med J 136(1): 38-46.
   
Howell, W. H. (1909). "The Medical School as Part of the University." Science 30: 129-140.
   
Marcum, J. A. (1990). "William Henry Howell and Jay McLean: the experimental context for the discovery of heparin." Perspect Biol Med 33(2): 214-230.
   
Marcum, J. A. (1996). "The discovery of heparin revisited: the peptone connection." Perspect Biol Med 39(4): 610-625.
   
Marcum, J. A. (2000). "The origin of the dispute over the discovery of heparin." J Hist Med Allied Sci 55(1): 37-66.
   
Rodman, A. C. William Henry Howell. Dictionary of Scientific Biography. 6.