He undertook his internship at the St. Louis City Hospital where he watched pioneering radiologist Dr. Leroy Sante perform fluoroscopy, and realised the potential of this new technique.
He worked as a general practitioner in New England, North Dakota, but returned to the University of Minnesota after a short time.
He then worked as a teaching fellow in internal medicine for a year, becoming responsible for the radiology service.
During this time he also trained in radiology at the Battle Creek Sanatorium and the University of Michigan.
[3] A collection of his papers is held at the National Library of Medicine in Bethesda, Maryland[4]