"University of Pittsburgh. University Library System. Digital Research Library." . . "Monongahela River (W. Va. and Pa.)" . . . . "United States, Pennsylvania, Allegheny, Monongahela" . . "United States, Pennsylvania" . . "United States" . . "Monongahela River Valley (W. Va. ann Pa.)" . . "Monongahela (Pa.)" . . "United States, West Virginia" . . "Monongahela River Valley (W. Va. and Pa.)" . . . "The Old and New Monongahela" . . . . . . . . . . . "Old and New Monongahela"@en . . . . . . . . . . "\"Running within and without the breadth of the Monongahela, Allegheny, and Ohio Rivers, the territory (at least in part) consists of the parent area of the Pennsylvania counties of Washington, Westmoreland, Beaver, Greene, Allegheny, and Fayette; and the West Virginia counties of Monongalia, Ohio, Brooke, Hancock, Marshall, and Wetzel, though indeed much of the Van Voorhis work is concerned with Monongahela City and its farher reaching environs\" -- Forew."@en . . . . . "The old & new Monongahela" . . . . "The old and new Monongahela"@en . "The area covered by the Monongahela, Allegheny and Ohio Rivers takes in the Pennsylvania counties of Washington (and Monongahela City), Westmoreland, Beaver, Greene, Allegheny, and Fayette; and the West Virginia counties of Monongalia, Ohio, Brooke, Hancock, Marshall, and Wetzel."@en . "The old and new Monongahela" . . "Old and new Monongahela" . "Biography" . "Biography"@en . . . . "Genealogy" . "Genealogy"@en . . . "History" . . "History"@en . . . . .