Dad And Daughter Disappeared In The Mountains In 2006—The Older Sister Never Stopped Looking

In August 2006, forty-two-year-old Walt Callahan drove into the Shoshone National Forest in Wyoming with his seven-year-old daughter Lily for their annual father-daughter camping trip. His sixteen-year-old daughter Sera stayed home. They never came back. The search lasted eleven days. It found nothing. No tent, no gear, no tire tracks beyond the trailhead, no evidence that two people had ever arrived at the campsite they had reserved. For eighteen years, Sera Callahan drove to a different national park every August the same month they disappeared and walked the trails and talked to the rangers and left her number with the visitor centers, because she had nothing else to do with the part of herself that refused to stop looking. Then in the summer of 2024, a park records clerk named Donna Hewitt was digitizing handwritten visitor logs from 2006 in a small office in Cody, Wyoming, and found an entry that made her reach for the phone. This is a story about a father and a little girl who vanished into the mountains, and the older sister who spent eighteen years making sure they were not forgotten. missing person cold case unsolved mystery national park disappearance family true story years later found