History of Venango County, Pennsylvania, and Incidentally of Petroleum, Together with Accounts of the Early Settlement and Progress of Each Township, Borough and Village, with Personal and Biographical Sketches of the Early Settlers, Representative Men, Family Records, Etc. 1879.  The title fairly well tells it all! You'll find lots of sketch illustrations depicting its scenery, private residences, public buildings, farm scenes, oil derricks, manufactories and more. This reprint edition features a new every-name index.