As a Civil War historian, newspaper columnist for the Atlanta Journal-Constitution and other newspapers, and author of Washington County, Virginia in the Civil War, Shaffer remains a member of the Society of Civil War Historians, Historians of the Civil War Western Theater, and Georgia Association of Historians. He serves as president of the Civil War Round Table of Cobb County, as a board member the River Line Historic Area, and as a Civil War consultant for the Friends of Camp McDonald. Shaffer belongs to the Atlanta Civil War Round Table, and holds BA and MA degrees, with honor, in Military History – Civil War Studies. Shaffer also writes a monthly bog, and Twitter messages for the Georgia Economic Development Council, and frequently lectures to various groups. He previously served as the Assistant Director of Kennesaw State University’s Civil War Center in Kennesaw, Georgia, before retiring to pursue research, writing, and lecturing in July 2014.