John McMillan’s Log School is possibly the oldest school building west of the Allegheny Mountains.
When John McMillan's descendants offered the old building to the trustees of the Jefferson Academy, they readily accepted.
The logs were marked, the cabin dismantled, and several wagon-loads of logs were hauled to Canonsburg.
The following year the building was reassembled behind the large brick college buildings known as the Jefferson Academy.
This photograph shows the small log cabin two years after being moved and re-assembled behind the Jefferson Academy buildings which later became Canonsburg High School
Over the years the log cabin had been moved several times and in the early 1900s it was put on a stone foundation.