Behind the scenesEdit
The hospital was named after Mark Frost's grandparents: Betty Calhoun and Dr. Douglas Calhoun. 
- ↑ Witheridge, Annette. "Exclusive: From Sand Lake to Twin Peaks - How One Woman's Grisly Unsolved Murder in 1908 Inspired the 90s Cult TV Drama that Is Making a Comeback in a Showtime Reboot." Daily Mail Online. 23 March 2017. Retrieved 6 November 2017.