William Jay was an American reformer, jurist, and son of  an American statesman who directed U.S. foreign policy for much of what decade?
William Jay (jurist) William Jay (16 June 1789 – 14 October 1858) was an American reformer, jurist, and the son of Founding Father and first U.S. Supreme Court Chief Justice John Jay (1745–1829).
Jay Gould (disambiguation) Jay Gould (1836–1892) was an American financier and leading railroad developer and speculator.