Celebrating 25 years of Dayton's Chamber Posted in: News Susan Simmons receives the Ambassador of the Year award, while Mary Ellen Conner, chamber ambassador, celebrates gleefully. Attendees toast 25 years of the Dayton Chamber of Commerce and its impact on the community. DAYTON — The community gathered Saturday evening to honor the chamber’s legacy and accomplishments and commemorate those who dedicated their ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!