David Richard Frank, 53, vanished from the fishing vessel Last Liz while working near Chichagof Island, Alaska, on July 13, 1991. The disappearance was reported to the Alaska State Troopers on July 14, 1991, and the Sitka Police Department led the subsequent search of the surrounding waters.

Investigators and search teams found no witnesses or physical evidence placing David on land or in rescue, and no trace of him or his remains was recovered. The prevailing explanation recorded at the time is that he was presumed to have fallen overboard into the frigid sea, but the lack of evidence left the exact sequence of events unresolved and the active search was eventually suspended.

If anyone was in the area of Chichagof Island on or around July 13, 1991, or has information about the Last Liz that could clarify what happened, please come forward.