The answer to 19d should be Thomas Mellon
Thomas Alexander Mellon (February 3, 1813 - February 3, 1908) was an American entrepreneur, lawyer, and judge, best known as the founder of Mellon Bank and patriarch of the Mellon family of Pittsburgh, Pennsylvania.
Mellon was born to farmers Andrew and Rebecca Wauchob Mellon on February 3, 1813, at Camp Hill Cottage, Lower Castletown, parish of Cappagh, County Tyrone, Ireland.
see this site:
http://top40-charts.com/pedia.php?title=Thomas _Mellon