I like learning things while caching, so I am doing some caches like this to make the cache more interesting and provide some more non-traditional caches.
A fairly simple puzzle to solve. Once you arrive read the plaque and you will find 8 numbers on it. Use the numbers to find the final coords. The 8 numbers are used from left to right (1-8).
Cache Coordinates N 39° 44.496 W 084° 32.286
Final cache location is N 39 44.ABC W 084 32.DEF
From the cache coordinates:
A=Subract 6th number
B=Subract 5th number
C=Add 5th and 8th Number and Subract that number
D=Subtract 7th number
E=2nd Number
F=Subtract the second number of her age, which is what these 2 sets of numbers represent
The cache is within a short walking distance of the plaque.
As always let me know if the log is getting full or needs maintenance. Report DNF's so I know if there is a problem or if I need to raise the difficulty. Do your best to put it back in the same spot.

You can validate your puzzle solution with certitude.