O'Brien, Carolyn Pearl, of Overland, Missouri, died on Friday, September 30, 2011 at the age of 68. Dear daughter of the Eugene C. and Pearl "Bunnie" L. Viner and her step-mother, Phyllis Barclay; devoted mother of Hesper (Alex Buehner) O'Brien, Linda (Jerry) Egelhoff, John Hasty, the late Kenneth Hasty, and step-mother of Shawn O'Brien, Dawn (Duane) Boschert, and Bryan O'Brien; cherished grandmother of 23; beloved significant other of Greg Sander; dear sister of John (Johanna) Viner; dear cousin and friend to many. Carolyn was a member of Our Lady of the Presentation Catholic Church for many years and was a leader of the Ritenour Co-Care for over 13 years. In lieu of flowers, memorials may be made to the St. Louis Zoo.