Mercer, PA Mercer County Courthouse Fire, Feb 1866
On Sunday morning February 25, 1866, fire broke out in the Court House. It was first discovered in the cupola and was thought to have started through stove pipes that had been rearranged the week before to accommodate cooking stoves brought into the building for some type of festival that used the Court House. Apparently someone forgot to return the pipes to their original configuration, and when the stove was lit to heat the building on Sunday for church services the fire broke out.
Fuhrman, Robert B., Hail Temple Built to Justice; A History of Mercer County's Court Houses, 1994