Of Elmira, NY passed away on Friday April 14, 2006 at Arnot Ogden Medical Center. He is survived by mother, Virginia A. Marks, brothers, Michael A. (Linda) Marks of Elmira, NY, David W. (Katherine) Marks of Horseheads, NY and Richard L (Mary) Marks of Columbia, MD, several nieces, nephews, aunts, uncles and cousins. Donald was a graduate of Elmira College with a Bachelors of Science Degree, He was formerly employed by Akzo Inc. of Watkins Glen, and he was a longtime member of IDMR, served in the United States Air Force and was a devoted son, loving uncle, beloved brother, and a friend of nature.Family and friends are invited to call at Olthof Funeral Home, Inc. 1050 Pennsylvania Ave. on Tuesday April 18, 2006 from 2:00 to 5:00 PM with Funeral and Committal Service there Tuesday at 5:00 PM.Interment will be in Woodlawn National Cemetery at the convenience of the family. In Lieu of flowers those wishing may make memorials to the Tanglewood Nature Center & Museum 443 Coleman Ave. Elmira, NY 14903. Those wishing may leave a ?Candle of Remembrance? for the family in Obituaries at www.olthof.com .