Marietta College – McDonough Auditorium August 31, 2026 Location 215 5th StreetMariettaOhio45750 Next Event Third Thursdays with The Castle: “Opening the Door West” The Story of the Ohio Company of Associates - October 15, 2026 - 7:00 pm - 8:00 pm Upcoming Events Third Thursdays with The Castle: “Opening the Door West” The Story of the Ohio Company of Associates - October 15, 2026 - 7:00 pm - 8:00 pm