Mark Gillen Posted on October 30, 2024 0 Mark D. Gillen, of Sycamore and Upper Sandusky, died Oct. 25, 2024, at Vancrest of Upper Sandusky. Bringman Clark Funeral Home is in charge of arrangements. Login Login Password Signup Here Lost Password Subscribe to the Daily Chief to read the full story... Get your Wyandot County news in print AND online! Subscribe! OR Try a 1-Day Access Pass for Only 99¢! 1-Day Access Are you a current subscriber to the Daily Chief-Union? NO PURCHASE NECESSARY! If you currently subscribe the Daily Chief-Union in print, then your access to the online content is INCLUDED in your subscription! Just verify your subscription to get started! Verify Your Subscription