William Jay was an American reformer, jurist, and son of  an American statesman who directed U.S. foreign policy for much of what decade?
John Jay John Jay (December 23 [O.S. December 12] 1745 – May 17, 1829) was an American statesman, Patriot, diplomat, one of the Founding Fathers of the United States, signatory of the Treaty of Paris of 1783, second Governor of New York, and the first Chief Justice of the United States (1789–1795). He directed U.S. foreign policy for much of the 1780s and was an important leader of the Federalist Party after the ratification of the United States Constitution in 1788.
Whiggism Whiggism, in North America sometimes spelled Whigism, is a historical political philosophy that grew out of the Parliamentarian faction in the Wars of the Three Kingdoms (1639–1651). The Whigs' key policy positions were the supremacy of Parliament (as opposed to that of the king), tolerance of Protestant dissenters, and opposition to a "Papist" (Roman Catholic) on the throne, especially James II or one of his descendants. After the huge success (from the Whig point of view) of the Glorious Revolution of 1688–1689, Whiggism dominated English and British politics until about 1760, although in practice the political group splintered into different factions. After 1760 the Whigs lost power, apart from sharing it in some short-lived coalition governments, but Whiggism fashioned itself into a generalised belief system that emphasised innovation and liberty and was strongly held by about half of the leading families in England and Scotland, as well as most merchants, Dissenters, and the middle classes. The opposing Tory position was held by the other great families, the Church of England, most of the landed gentry, and officers of the army and the navy.