Thomas Cole National Historic Site is currently seeking volunteers to conduct tours and monitor the galleries at the site during the season May through October and also recruiting guides for the hiking program on the Hudson River School Art Trail. Open House includes behind-the-scenes tours and a lecture by Robert D. Loversidge. Reservations are required for participation in the Open House by contacting Melissa Gavilanes, Director of Education at 518-943-7465 x 5, or mgavilanes@thomascole.org.