11 Pa. Stat. § 271
The county commissioners of any county of the third, fourth, fifth, sixth, seventh, and eighth class, by and with the approval of the grand jury and of the court of quarter sessions of the peace of the county, shall have the authority, and are hereby authorized, to purchase a farm or plot of ground within the county, and erect buildings thereon, or add to and improve buildings already erected, and make improvements thereon and thereto, as may be convenient and necessary for the use and purpose of providing a home within the county for the keeping, care, education, and training of all indigent orphans dependent upon the public for support and not otherwise provided for, incorrigible, indigent, defendant, and neglected children of either sex, under sixteen years of age, who shall be committed to said home by the court of quarter sessions of the peace acting as juvenile court of the county, or by the county commissioners, poor directors of said county, or the poor directors of any district within the county, by and with the consent of the juvenile court of the county, and pay for the same out of the public funds belonging to the said county.
11 P.S. § 271