This is a very simple two stage multi. The walk to the final is less than 100m. This mutli should take you no more than 15 minutes to complete.
Stage One: The Posted Coordinates
On the plaque, there will be several numbers. You need to find the Legion Number and the Date that the plaque was dedicated.
Take the Legion number and divide by 1000. This will be .XXX
Take the year the plaque was dedicated. Divide by 1000. This will be Y.YYY
The final is located at:
N 43 05.487 + .XXX
W 080 27.502 - Y.YYY