Pennsylvania Statutes Title 64 P.S. Public Lands § 42. Credit to be given for money already paid

Any person or persons holding a warrant or warrants, issued under the authority of the commonwealth, and on which surveys have been made and returned into the Surveyor General’s office,  1 or patents have issued, and who are also in possession of the title to the same lands, or any part thereof, by virtue of a proprietary warrant or location, that the Secretary of the Land Office,  2 under the direction of the board of property, shall carry to their credit the amount of purchase money and interest paid by them, or those under whom they claim on their said new warrants, and if for a part of a tract, a proportional part of each and every such payment.