MERCER, county seat, population 1932; was once an Indian village of seventy lodges; no settlement was made here until after Wayne’s victory over the Indians in 1795; it was laid out in 1803, on two hundred acres of land given by John Hoge of Washington County. The courthouse, built, 1909, colonial; brick, stone, and concrete; is in center of the public square of three acres; interior finished in white marble; mural painting in dome by Edward Everett Simmons, represents Power, Innocence, Guilt, and Justice; in the courtrooms [Illustration: MERCER COUNTY] [Illustration: MURAL PAINTING IN THE DOME OF MERCER COUNTY COURT HOUSE _Painted by Edward Everett Simmons_] on second floor are symbolic mural paintings, “Criminal Law,” by Vincent Aderente, and “Civil Law,” by Arthur Foringer, made in 1911; panels 11 by 12 feet; in the judges’ chambers is a portrait of Honorable Henry Baldwin, former member of the Mercer County bar, and Justice of the Supreme Court of the United States, 1830-44. On courthouse grounds is the monument, granite and bronze, to soldiers of Mercer County in the war of 1861-65. The Humes Hotel, at the northeast corner of the Public Square, built, 1817, then known as “The Hackney House,” oldest hostelry in the county, had as guests Marquis de Lafayette in 1824; his room, No. 12, is open to guests; President Taylor and Buchanan, and General John B. Gordon of Georgia also visited here. The celebrated Harthegig healing springs, named after an Indian chief, is near Mercer; Indians claimed it healed them of many diseases. HOPE MILLS was the birthplace and the early home of George Junkin, D.D., who was father-in-law of General Stonewall Jackson; his father was a captain in the War of 1812. GROVE CITY is a picturesque college town, being the home of Grove City College, founded by Dr. Isaac C. Kettler. Buhl farm, near SHARON, is a recreation park for citizens of Shenango Valley and has club house, swimming pool, golf, tennis, and baseball grounds. [Illustration: ARMSTRONG COUNTY] XXXV ARMSTRONG COUNTY Formed March 12, 1800, and named for General John Armstrong, who commanded the expedition against the Indians at Kittanning in 1756, and destroyed their town; a hilly and well-watered region with fine farming lands on bottoms and hills. Bituminous coal and limestone are found in all parts of the county; cannel coal of excellent quality, oil, gas, and iron ore; the plate-glass industry at Ford City is said to be the largest in the world. Historic places are, site of Fort Jacob; Battle of Blanket Hill; and point where Washington and Gist crossed the river, not marked.