The Carl & Mary Koehler History Center is pleased to that Caitlin Treece has been named Interim Executive Director of the History Center following the departure of former Executive Director, Melanie Alexander, who accepted the position of Executive Director at the Muscatine Art Center. Treece has been the History Center’s Education Director since 2010 and is a M.A. graduate of University of Wisconsin - Milwaukee.The Carl & Mary Koehler History Center serves as the historical heart of Linn County. It is open Tuesday through Saturday from 10:00a.m. to 4:00 p.m. and is located at 615 First Ave SE in Cedar Rapids.