Daniel, William: - William Daniel is a sixth grader, a WWII enthusiast, and a competitive gymnast. He builds model airplanes and wants to be a pilot someday. He has an older sister, Maris, and a twin sister, Calyn, and is the younger by four minutes. As you can well imagine, he enjoys making people laugh, which he does for family, friends, and at school. William lives in Colorado with his family and dog, Riley.