Don Duffy, 86, of Arlington, VA., died at noon, April 19, 2004 at the Manor Care Nursing Home at Arlington VA. He was born January 13, 1918 in Washington DC, the son of the late Denis O. & Anne Bryson Duffy. He was a chemist for the EPA and FDA as a Petition Reviewer , a member of the Chemical Society, a member of the Ohio State Alumni Association, and a WW2 Army Veteran. Surviving are his sister Ann Duffy of Arlington VA., one nephew and wife, John Denis and Miriam (Missie) Duffy of Manassas VA., and a grand nephew Patrick Duffy of Manassas VA. . No calling hours will be held. Burial will be held at Zanesville Memorial Park at the convenience of the family.