Today I went back to the old schoolhouse site to find silver coinage. As usual it was miserable fighting the brush and I didn't find any coins. However, my first hit of the day was a pocket knife, which was a first for me. Some other odds and ends, probably from when the schoolhouse was used as a residence from 1944 to 1964.
The knife's handle appears to be Bakelite and only down about 3" so I'm thinking 60's on it.