To find the second stage of the cache, you'll need to take information at the posted coordinates and carefully work some numbers. And, be mindful of muggles.
For the North coordinates, ADD to the decimal part of the posted North coords: the person on the left's 2-digit year of their birth, the person on the right's 2-digit year of their birth and their years of continuous service, and SUBTRACT the person on the left's years of continuous service.
For the West coordinate, ADD to the decimal part of the posted West coords: the person on the left's 2-digit year of their birth, the person in the middle's 2-digit year of their birth and their years of continuous service and their 2-digit year of their death, and the person on the right's 2-digit year of their birth.
You can check your answers for this puzzle on GeoChecker.com.
After making the find and signing the log, check out the view.
There is a little bonus for the FTF. CONGRATS to the ThorScouts (Al) for the FTF!!