History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 4

Pittsburgh, how to See it: A Complete, Reliable Guide Book with Illustrations, the Latest Map and Complete Index

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 4

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 2

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution ...

My High School Days: Including a Brief History of the Pittsburgh Central High School from 1855 to 1871 and Addenda

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 1

Life and Letters of Brigadier General Alexander Hayes (Abridged, Annotated)

History of Pittsburgh and Environs: Volume 2

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution ...

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 1

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 3

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution ...

Life and Letters of Alexander Hays: Brevet Colonel United States Army, Brigadier General and Brevet Major General United States Volunteers

Pittsburgh, how to See it: A Complete, Reliable Guide Book with Illustrations, the Latest Map and Complete Index

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 1

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution, Volume 2

Life and Letters of Alexander Hays: Brevet Colonel United States Army, Brigadier General and Brevet Major General United States Volunteers

History of Pittsburgh and Environs, from Prehistoric Days to the Beginning of the American Revolution ...

History of Pittsburgh and Environs: From Prehistoric Days to the Beginning of the American Revolution ...