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.
Columbus Delano Columbus Delano, (June 4, 1809 – October 23, 1896) was a lawyer, rancher, banker, statesman and a member of the prominent Delano family. Delano was elected U.S. Congressman from Ohio, serving two full terms and one partial one. Prior to the American Civil War, Delano was a National Republican and then a Whig; as a Whig he was identified with the faction of the party that opposed the spread of slavery into the Western territories, and he became a Republican when the party was founded as the major anti-slavery party after the demise of the Whigs in the 1850s. During Reconstruction Delano advocated federal protection of African-Americans civil rights, and argued that the former Confederate states should be administered by the federal government, but were not part of the United States until they met the requirements for readmission to the Union. Delano served as President Ulysses S. Grant's Secretary of the Interior during a time of rapid Westward expansionism, and contended with conflicts between Native American tribes and American settlers. He was instrumental in the establishment of America's first national park, supervising the first U.S. federally funded exploratory scientific expedition into Yellowstone in 1871, and becoming America's first national park overseer in 1872. In 1874, Delano requested that Congress protect Yellowstone through creation of a federally funded administrative agency, the first Secretary of the Interior to request such preservation of a nationally important site.