He then worked at Arthur Andersen from 1915 to 1920 (interrupted by a stint in the Army Quartermaster Corps during World War I).
[1] In 1938, Kohler entered public service, as the controller of the Tennessee Valley Authority, a position he held until 1941.
[1] He received the Gold Medal of the American Institute of Certified Public Accountants in 1945.
He was controller of the Economic Cooperation Administration, which oversaw the Marshall Plan, in 1948 and 1949,[2] but otherwise worked as a private consultant in the postwar period.
Kohler held strong beliefs that the terminology of accounting should be precise and meaningful, avoiding vague terms with situation-dependent meanings.