Abstract
Described by contemporaries as a quiet, unassuming man, Waldo G. Poehner (b. 27 July 1889 in Joliet, d. 16 February 1958) was a strong advocate for progressiveness, with strong opinions he expressed with eloquence and conviction. Although he was unafraid to criticize, he only ever did so in the most professional way, and, like a true professional, was willing to have his own actions scrutinized. These attributes helped make him influential in the progression of radiology and radiography within chiropractic. Poehner is acknowledged as having conducted the first chiropractic postgraduate course on radiology, over a weekend in January 1946, to four attendees. He was also a Mason, president ofAmerican Foundation for the Advancement of Health, a director of the Chicago Boys Club, and served on the Chicago Committee on Vandalism and Public Citizenship.