The puzzle will require some online research.

What do the people mentioned below have in common? Use that link to determine the coordinates for the cache.
The cache can be found at:
S41 09. (Toni Hoffman) (Eddie Woo) (Lynne Sawyers + Lynne Sawyers)
E146 14. (Donna Carson) (Donald Ritchie) (Tim Conolan)
Good luck with solving the puzzle and locating the cache.
Please Note: If the logbook is not signed, your find log will be deleted.
Update 19 June 2020: The original hide has been destroyed. The cache has been replaced and moved a short distance away. The puzzle has not been changed. When you enter the solution to the puzzle into the coordinate checker, you will be given the updated coordinates for the cache.
Update 16 October 2025: Vegetation has been cleared somewhat and the cache has been a casualy. So the cache has been replaced and moved a short distance away again. The puzzle has not been changed. When you enter the solution to the puzzle into the coordinate checker, you will be given the updated coordinates for the cache.

Good Luck.