steel carnegie mill andrew pittsburgh blast pennsylvania explorepahistory industrial furnaces bethlehem company corporation revolution industry plant century architecture point railroad
railroad gang car history handcar track during were old pennsylvania cars construction used hand tools work men explorepahistory historical workers
lewistown station railroad pennsylvania explorepahistory train historic historical 1849 photograph chuck technical society courtesy credit
farm life old pennsylvania rural farmer 1800s 1800 frontier american vintage family farmers 1849 valley sugar pa farms early poor
confederate painting chambersburg burning war civil gallon dale southern revenge american 1864 gettysburg artillery pennsylvania historical 1989 history military paintings
horseshoe curve teller grif railroad world prr explorepahistory nazi 1854 war track underwriters premier courtesy credit inc american trains
wagon horses conestoga horse covered lancaster pa farmer 1910 county circa wagons his drawn draft shreiner history old john american
photographs waud alfred gettysburg explorepahistory pa photograph congress courtesy prints credit library