The Caledonia Historical Society October meeting will be held Thursday, October 19th at 6:30 pm at the Caledonia/Mt. Pleasant Park, 9614 Hwy K, Franksville. The public is invited to join the CHS in welcoming guest speaker, Jim Mercier, who will speak about old Racine advertising signs and trays used at Racine breweries, dairies, and stores.  He will be sharing advertising pieces from his collection of Racine memorabilia.