In 1890, the first Reunion of the Blue and Gray was held at Mammoth Spring, drawing Civil War veterans from both sides from Northern Arkansas and Southern Missouri. It soon became a popular August event, with most participants arriving by team and wagon and, in later years, by automobile. Over time, the Reunion of the Blue and Gray became today's Old Soldier's Reunion. During reunion week, the town was filled with activity as veterans and their families traded goods, took part in racing, shooting, and other contests, and shared stories about the war. Wooden carnival rides were built for children, and afternoon baseball games and evening concerts were also popular. Although the reunion has changed over the years, it has always honored veterans who fought to protect their families and preserve their way of life.