PRESS PHOTOS BY STEPHANIE RAPHUNLeft: Pete Ellis, the newest member of the Whitehall Historical Preservation Society board, touches up a wooden display at Helfrich Springs Grist Mill's open house July 9. The grist mill, Mickley and Lehnert roads, will offer visitors an additional open house tour of some of Whitehall's preserved historical artifacts 10 a.m.-2 p.m. July 30.