Ken was born July 6, 1926, in Albany, N.Y., the son of Mary Flugel and Kennard F. Stephenson 1912.

Ken attended Milne High School in Albany. He was a sergeant in the Army’s 29th Infantry from 1944 to 1946. He and Ann Elmore were married in 1950 and lived in the Harrison Street Project. A chemical engineer, he earned bachelor’s and ­master’s degrees from Princeton.  

In 1952 he joined M.W. Kellogg in New York, specialists in oil-refinery and chemical-plant design and construction, and carried out process-design assignments for 12 years. In 1964 he joined Allied Chemical as a process supervisor in Buffalo and later in Morristown, N.J. In 1980 he moved to Crestwood, Ky., to work for Bechtel in Louisville. He retired from consulting in 1993. For several years he served as a board member and officer of Particulate Solid Research, an international industrial consortium conducting applied research in fluid particles.

Ann died in 1985, and Ken died of cancer Jan. 14, 2012. He is survived by his children Laura Carter, Elizabeth Zuercher, Annette, and James; and nine grandchildren. His son Lee and sister Katherine Mollison predeceased him. His son Kennard D. died Aug. 12, 2012.

Undergraduate Class of 1951
,
Graduate Class of 1955