 Visitation will be at the David Donahower Funeral Home on Tuesday from 5 to 7, with a time of sharing at 6.30. Lunch and fellowship will then follow the service on Wednesday in Detroit Lakes. Charles David Gunderson and his wife Ruth were long-time educators, and in the mid-to-late 60s through the early-to-mid 70s, they were educators at Lindbergh Elementary School in Little Falls.