Oliver and Perry Townships:

Both were both named after the great naval hero Oliver H. Perry. Oliver township was formed in 1857 from part of Perry Township. Perry Township was formed in 1817.

In Oliver Township, the first settler was Reuben Hickox who came from Connecticut in 1822. In 1833, Frederick Sprankle of Indiana, PA opened a grist mill at the junction of Kellar's Run and Big Run. This was later to become the town of Sprankle Mills. A general store opened in Sprankle Mills in 1846. The first tannery in Oliver Township was located in Oliveburg. In 1846 a carding machine was erected in Coolspring and a general store opened.

Perrysville was a prominent town within Perry Township; which later became known as Hamilton. Settlement of Perry Township started there in about 1809. A school was built in 1820 and a church was opened in 1835. A sawmill was opened also. There was a "pioneer hotel" and a general store. Was the post office was established in 1852, the town was renamed Hamilton after Robert Hamilton, the first postmaster. In 1886, the town's name was changed to Hay because of Malcom Hay who was an assistant postmaster appointed by President Grover Cleveland. Then in 1889, the name was changed back to Hamilton.