Robley Evans Winfrey was born on September 7, 1899, in Runnels, Iowa. He received his B.S. (1922) and M.S. (1926) in civil engineering from Iowa State College (University). He also earned the Professional Degree (1942) in civil engineering. Winfrey joined the staff at Iowa State as Research Engineer and Editor (1922-1935) of the Engineering Experiment Station Bulletin. He was named Associate Professor (1939-1942) of civil engineering and then promoted to Professor (1946-1952). He left Iowa State for a position in the U.S. Bureau of Public Roads where he served as Chief of Personnel and Training (1952-1960) and Chief of the Economic Research Division (1960-1969). He then went into private practice as a Consulting Civil Engineer in Washington, D.C.
From the description of Papers, 1933-1993. (Iowa State University). WorldCat record id: 650081131