Park National Corp. announced that two members of its board of directors will not run for re-election as members of the board. James J. Cullers and William A. Phillips will each conclude their service on the Park board immediately prior to Park's annual meeting on April 23, 2012. Mr. Cullers, of Mount Vernon, is the sole proprietor of Mediation and Arbitration Services, and retired as a senior partner, attorney and general legal counsel at Zelkowitz, Barry & Cullers. He has served on Park's board since 1997. He will retain his position as a member of the advisory board for First-Knox National Bank, a community banking division within the Park organization. Mr. Phillips, of Zanesville, is the former Chairman and Chief Executive Officer of Century National Bank and has served on Park's board since 1990.