Hello Billtown, is how one of my favorite co-workers answers his phone. I think he could be considered the unofficial mayor of this small little community.
Williamstown is at a crossroads of old US 30 and US 68. US 30 is part of the Lincoln Highway which extends from Atlantic to the Pacific Oceans. The town has changed since the new 30 was built to the south of town. The above latitude and longitude will take you to a brick built marker, to show the route of the Lincoln Highway.
To start take the two words that are the name of the cache. Add the number of letters from the first word then subtract this number from the letters from the second word. This number should be subtracted from the original North latitude. The adjustment to the West longitude can be made by adding the sum of the numbers that represent the 2 US routes that cross in this town. Once done you will have the right numbers to find a small log only cache. Slight change in location of final stage. The town had a grocery store many years ago. It's gone but you need to find a Market.
Congratulations to Nikonman0521 for FIRST TO FIND