A Traveler's Guide to Historic Western PennsylvaniaEdwin V. Pugh Lois Mulkearn · First published 1954Open the Tome
George Mercer papers relating to the Ohio Company of VirginiaPittsburgh, University of. Darlington Memorial Library., Lois Mulkearn · First published 1954Open the Tome
A Topographical Description of the Dominion of the United States of AmericaLois (Editor) Pownall T.; Mulkearn · First published 1949Open the Tome
