The public is invited to celebrate “Gingras Days” July 5 and 6 at state historic sites near Walhalla. The event is free, and lemonade will be served. All ages are welcome.On Friday, July 5, the trading post and colorful home of Antoine Blanc Gingras at the Gingras Trading Post State Historic Site will be open from 10 a.m. to 4 p.m. for guided tours. Located 1.5 miles northeast of Walhalla, these…