DeLeuw was born in July, 1891 at Jacksonville, Illinois. He received degrees from the University of Illinois in 1912 and
1916. During World War I he was a Captain in the US Army Engineers
receiving a Distinguished Service Cross and Belgium's Order of the
the war he became a founding partner of the predecessor firm to DeLeuw
Cather and Associates (Kelker, DeLeuw and Co.).
From 1933 to 1935 he was Assistant Chief Highway Engineer for the
Illinois Department of Public Works and Buildings and from 1935 to 1936
Director of the Illinois Statewide Highway Planning Survey.
Starting in 1938 Mr. DeLeuw became Chief Subway Engineer for the
City of Chicago.
During the war years he worked with problems involving Chicago's
Transit System and the war effort and also served as Chief Engineer for
the City's Superhighway Commission.
Much of the planning for the Chicago Expressway System evolved as
a result of his effort.
firm of DeLeuw Cather and Associates, one of the nation's largest during
Mr. DeLeuw's tenure, grew into an international consulting firm of 1,500
Mr. DeLeuw was registered as a professional engineer in 36