May Roundtable speaker David Powell has published numerous articles on historical simulations of different battles. For the past decade David’s focus has been on the battle of Chickamauga and is recognized nationally for his writings on that battlefield. The lecture will begin at 8 p.m., Tuesday, May 10, 2016, at the Bearden Banquet Hall, 5806 Kingston Pike. Lecture is $5, students free. Dinner at 7 p.m., $17, including lecture. RSVP by noon, Monday, May 9 by calling (865)671-9001.