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U.S. Reports: Respublica v. Honeyman, 2 U.S. (2 Dall.) 228 (1795)

U.S. Reports: Ewing v. McNair, 2 U.S. (2 Dall.) 269 (1796)

U.S. Reports: Sims Leffee versus Irvine, 3 U.S. (3 Dall.) 425 (1799)

Refutation. To the Democratic party of Allegheny County. A paper called the Aurora, and professing to be Democratic, having made a charge against me ... I published in the morning post, the following plain denial of the charge ... George R. Ridd

City dictation!!! To the Democrats of Allegheny County. You have doubtless heard of the nomination of George R. Riddle for the office of prothonotary, by the Democratic convention of August 30th on the 6th ballot ... Democrats! will you be base

Map of Allegheny County, Pennsylvania, with the names of property-holders : from actual surveys /

Map of Allegheny Co., Pennsylvania : from actual surveys /

Map of Allegheny County, Pennsylvania : from actual surveys /

Map of Allegheny County, Pennsylvania, 1890 : with adjoining parts of Westmoreland, Washington & Beaver counties.

Sanborn Fire Insurance Map from Verona, Allegheny County, Pennsylvania

Verona & Oakmont, Allegheny County, Pennsylvania 1896.

Duquesne, Allegheny County, Pennsylvania 1897.

Turtle Creek, Allegheny County, Pennsylvania, 1897

Elizabeth and West Elizabeth, Allegheny County, Pennsylvania 1897.

Carnegie, Allegheny County, Pennsylvania, 1897

Carnegie, Allegheny County, Pennsylvania 1897 /

Wilmerding, Allegheny County, Pennsylvania 1897.

Turtle Creek, Allegheny County, Pennsylvania 1897.

Farm line map of Allegheny County, Pennsylvania /

McKee's Rocks, Allegheny County, Pennsylvania 1901.

Tarentum, Allegheny County, Pennsylvania, 1901.

Pitcairn, Pa., Allegheny County 1901 /

Scott, Union and West Liberty Townships and Greentree Borough, Allegheny County. (Skeleton)

New automobile & good road map of Allegheny County, Pennsylvania

Pittsburgh housing. Pennsylvania

Pittsburgh housing. Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania

Steel plant on Monongahela River. Clairton, Pennsylvania

Examining sheets of steel after rolling. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Russian Orthodox Church. Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Loading sheet steel. Pittsburgh, Pennsylvania

Steel mill. Pittsburgh, Pennsylvania

Russian Orthodox Church. Pittsburgh, Pennsylvania

Junction of the Allegheny and Monongahela Rivers to form the Ohio. Pittsburgh, Pennsylvania

Looking north. Monongahela River, Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Moving a roll of sheet steel, Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Steel mill. Pittsburgh, Pennsylvania

Junction of the Allegheny and Monongahela Rivers to form the Ohio. Pittsburgh, Pennsylvania

A section of the big rollers that make sheet steel. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Workers' homes with steel plant along Monongahela River in background. Clairton, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Tapping a blast furnace. Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Steel worker at rolling mill. Pittsburgh, Pennsylvania

Loading sheet steel. Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

View of city of Pittsburgh, Pennsylvania

Tapping a blast furnace. Pittsburgh, Pennsylvania

View of city of Pittsburgh, Pennsylvania

Workers' homes with steel plant along Monongahela River in background. Clairton, Pennsylvania

Inactive steel mills. Pittsburgh, Pennsylvania

Examining sheets of steel after rolling. Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Pittsburgh. View of the city from Homestead

Looking north. Monongahela River, Pittsburgh, Pennsylvania

Moving a roll of sheet steel, Pittsburgh, Pennsylvania

Steel worker in Pittsburgh steel mill. Pittsburgh, Pennsylvania

Steel plant on Monongahela River. Clairton, Pennsylvania

Loading sheet steel. Pittsburgh, Pennsylvania

One of the many bridges spanning the Allegheny River. Pittsburgh, Pennsylvania

Steel mill. Pittsburgh, Pennsylvania

Steel mill. Pittsburgh, Pennsylvania

Steel mill. Pittsburgh, Pennsylvania

One of the substations supplying the enormous quantities of electric power needed in steel production. Clairton, Pennsylvania