John Duffy, 77, passed away April 2 after a 19-month battle with metastatic melanoma. He had a long career in agricultural minerals marketing, and in 1999 retired as vice president of worldwide sales and marketing with Mississippi Chemical Corp., relocating to Denton, Texas. He was also a past chairman of the Southwestern Fertilizer Conference.
Duffy received a B.S. in Geology from the University of Oklahoma and a Professional Masters Degree from Harvard Business School.
In addition to his wife of 49 years, Sue, he is survived by two daughters, Shauna and Kristy, and two grandchildren.
Funeral Mass will be at 1:00 p.m. on April 10 at St. Mark Catholic Church, Denton. A gathering with the family will follow immediately after at Southmont Baptist Church. In lieu of flowers, memorials may be made to MD Anderson Cancer Center Melanoma Research at www.mdanderson.org/how-you-can-help/melanoma-vaccines.html or the Oklahoma Medical Research Foundation (OMRF) at www.omrf.org.