A U-S Military F-16 fighter jet passed over Washington at about noon yesterday as World War II veteran John Butler was laid rest in Elm Grove Cemetery. Mike Voght is curator of Iowa's Gold Star Military Museum in Fort Dodge. He says Butler is part of a rapidly disappearing generation. Voght says its important to maintain contact with our remaining World War II vets who are willing and able to share their stories. John Butler was 90 when he passed away. He was 23 years old during the attack on Pearl Harbor that thrust the United States into the conflict.