Corporation Gulf Oil H.J. Heinz Company H.K. Porter, Inc. Idlewild Park Koppers Ligonier Valley Railroad McClintic-Marshall Construction Company MellonDrexel Mellon National Bank Monongahela River Coal Company New York Shipbuilding Corporation Old Overholt Pan Am Systems Perma Treat Pittsburgh Coal Company Pittsburgh Tribune-Review Pittsburgh,Westmoreland & Somerset Railroad Rokeby Stables Sacramento Union Spring Valley Mining & Irrigation Company Standard Steel Car Company Westinghouse Electric Corporation Philanthropy & miscellaneous nonprofits Allegheny Foundation Andrew W. Mellon Foundation Beechwood Farms Nature Reserve Bollingen Foundation Cape Hatteras National Seashore Carnegie-Mellon University Colcom Foundation Carthage Foundation Ezra Stiles College Hôpital Albert Schweitzer Haiti Jacqueline Kennedy Garden KQV Laurel Foundation Maurepas Swamp Wildlife Management Area Mellon Trust Morse College National Gallery of Art National Legal and Policy Center Paul Mellon Centre for Studies in British Art Rachel Mellon Walton Fund Richard King Mellon Foundation Sky Meadows State Park University of Pittsburgh White House Rose Garden Buildings, estates & historic sites Andrew Mellon Building Andrew W. Mellon Auditorium Cathedral of Learning Dune House East Liberty Market East Liberty Presbyterian Church Mellon Carriage House Mellon National Bank Building Mellon Park Mellon Square National Portrait Gallery Oak Spring Garden Penguin Court Rolling Rock Club Scallop Path References Bibliography External links American families of Scotch-Irish ancestry Episcopalian families