At the posted coordinates you will find an Ohio Historical Marker. Use the information there to answer the questions below to locate the physical location of the cache container. And as always - play fair, be safe, CITO when you can, sign the log and replace as found. Enjoy!
A - Napoleon's first cemetery was located in the vicinity of XXX East Clinton.
B - How many horses are in the picture? X
C - What year was the Ohio Historical Marker resurrected? XXXX
D - A picture of the sawmill along the canal in Napoleon was taken circa (year)? XXXX
***(C-D) + (A-B) = .EFG
******Add .EFG to N 41 23.061 to get north coordinates.
T - Last two digits of the marker number. 5.XX
U - How many men are wearing hats in the picture? X
V - How much were the workers paid per day between 1825 and 1845 to work on the canal? XX Cents
W - How many miles did the Miami and Erie Canal stretch from Cincinnati and Toledo? (Use last two digits only) 2XX
***T + U + V +W = .XYZ
******Add .XYZ to 084 07.042 to get west coordinates.

You can validate your puzzle solution with certitude.