Helgoland Natives & Descendants - Halunder Speakers & Heisenberg Links

Helgoland I’m fascinated by the history of this tiny island. I’ve traveled there twice now and I’m now trying to find people to interview for a documentary. Specifically people who are from Helgoland or descend from people from Helgoland, speak or study Halunder language or have family or professional connection to Werner Heisenberg.