William Duncan McNally

Chemist, Dr. William Duncan McNally, and H. J. Carlin, sitting in a room in 1916

William Duncan McNally (July 8, 1882 – June 29, 1961) was the chief chemist in the Cook County Department of Public Health and the chief chemist for the Cook County Medical Examiner's office.[1][2] He invented an early breathalyzer in 1927.[3]

He was a holder of M.D.

  1. ^ "Contributor's Column, W. D. McNally". Chemical Bulletin. February 1, 1923. Retrieved 2014-01-02.
  2. ^ "Contributor's Column, W. D. McNally". Chemical Bulletin. p. 32. Retrieved 2014-01-02.
  3. ^ "Test a Tippler's Breath". Popular Science. August 1, 1927. p. 56. Retrieved 2014-01-02.