Incorporation of the Borough
Early in December of 1889, a petition was presented to the Quarter Sessions Court of Allegheny County praying for the incorporation of the Village of Wilmerding as a Borough.
The signers of this petition who described themselves as being a majority of the freeholders residing within the bounds of the proposed Borough were: The East Pittsburgh Improvement Company, W. L. Stewart, J. W. Undercoffer, Laura Hohmyer, Charles Kuehl, John S. Edgar, Dr. J. H. McLaughlin, Joseph Redfern, T. B. Thompson, Mrs. Ellen McGinley and Eliza Grierson.
On December 7, 1889, a supplemental petition was filed, signed by additional freeholders of property within the bounds of the proposed Borough, but not resident therein, who asked leave to join in the prayer of the original petition filed. Among the signers of this supplemental petition and who shortly thereafter became residents of Wilmerding, were: William Adams, Michael Weidt, J. C. Boyle, W. B. Brush, Anton Frank, Thomas P. Hillman, George D. Allshouse, Charles Trautman and Con Beh.
The petitions were referred to a grand jury which approved the same and on March 8, 1890, the Court entered a decree incorporating the Village of Wilmerding into a Borough, under the corporate title of "Borough of Wilmerding," fixing the boundaries thereof to include all of the tract known as the Osborne Farm in North Versailles Township and all of that portion of the tract in Patton Township purchased from Thomas McMasters heirs, extending from Patton Street westwardly to Line Alley, (now the easterly line of Turtle Creek Borough).
The Court further decreed that the first election for Borough officers should be held at the post office in the Borough at the corner of Station Street and Westinghouse Avenue on June 14, 1890, and designated W. L. Stewart to be judge of said election and W.W. Warne and Thomas B. Thompson to be the inspectors thereof.