Ships for the seven seas : Philadelphia shipbuilding in the age of industrial capitalism
The Ma & Pa : a history of the Maryland & Pennsylvania Railroad
The Pennsylvania Railroad at bay : William Riley McKeen and the Terre Haute & Indianapolis Railroad
Conquering Gotham : a gilded age epic ; the construction of Penn Station and its tunnels
Railroads of Pennsylvania : your guide to Pennsylvania's historic trains and railway sites
The railroad that never was : Vanderbilt, Morgan, and the South Pennsylvania Railroad
Fueling the Gilded Age : railroads, miners, and disorder in Pennsylvania coal country