Roger Carlton Duffield, Sr. Ph.D., 76, of Columbia, Mo., passed away July 15, 2013.

Roger Carlton Duffield, Sr. Ph.D., 76, of Columbia, Mo., passed away July 15, 2013.
He was born April 7, 1937 in Kansas City, Kan., to the late Cecil Frederick and Edith Ilene (Winslow) Duffield.
Roger attended Leavenworth High School in Leavenworth, Kan. and graduated in 1955. He married Marlene Murray in 1960, and she survives. Also in 1960, he received a B.S. in Mechanical Engineering, 1964, his M.S. in Engineering Mechanics and in 1968, his doctorate at the University of Kansas. From 1960 to 1963, Roger was employed at LFM Manufacturing Company in Atchson, Kan. He taught Mechanical and Aerospace Engineering at the University of Missouri from 1966 to 2000. He also taught graduate courses mainly in Finite Elements and Vibrations and was the Director of Graduate Studies for 11 years, with research in Bridge Fatigue and Spinal Research. From 2000 until 2013, he was Professor Emeritus.
Roger's hobbies included model railroading and genealogy, as well as co-owning Gold Spike Trains.
In addition to his loving wife, he is survived by his children: Roger Duffield Jr., of Harrisburg, Mo., Bryan Duffield of Columbia, Mo., Alicia Duffield-Creighton (Chris) of Clayton, Mo., and Renee Slusher (Chris) of Columbia, Mo.; grandchildren: Kayla, Andrew, Caroline, Grant and Nicholas.
Roger was preceded in death by his parents and brother, Stephen.
Funeral Services will be held at 11 a.m. on Saturday, July 20, 2013 at the St. Thomas Moore Newman Center in Columbia, Mo. A visitation will be at 10 a.m. at the church, until the time of service. Interment will be in Memorial Park Cemetery.
Memorial contributions may be made to St. Thomas Moore Newman Center, 602 Turner Ave, Columbia, MO 65201 or to M Graham Clark Chapter, Sons of the American Revolution, c/o John Coatts, 5001 N. Locust Grove Church Rd, Columbia, MO 65202.
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