Sullivan July 4th Celebration - Come one, come all! Sullivan American Legion Post 88 proudly presents Sullivan July 4th Celebration. The festivities kick off on July 2nd with Conner Family Carnival, rides, food and games. On July 4th at Noon, Sullivan's largest parade begins followed by a Watermelon eating contest, sack races, turtle races and all kinds of other family fun events. You won't want to miss the amazing fireworks display at dusk.