This headstone at the Muncrief Cemetery in Ninnekah was made by Lexington inmates. The Muncrief Cemetery is part of Ninnekah's rich history. An upcoming celebration of Ninnekah, called Heritage Day, is due to take place in May in the Ninnekah school cafeteria, the community is invited to share their ideas for planning this event, Shelby Ross, Ninnekah Historical Society President, said.