John Pierpont was an American poet, who was also successively a teacher, lawyer, merchant, and Unitarian minister. His poem The Airs of Palestine made him one of the best-known poets in the U.S. in his day. He was the grandfather of J. P. Morgan.
Sir John Wyndham Pope-Hennessy, was a British art historian. Pope-Hennessy was director of the Victoria and Albert Museum between 1967 and 1973, and director of the British Museum between 1974 and 1976. He was a scholar of Italian Renaissance art. Many of his writings, including the tripartite Introduction to Italian Sculpture, and his magnum opus, Donatello: Sculptor, are regarded as classics in the field.
John Frederick Prados was an American author, historian, and wargame designer who specialized in the history of World War II, the Vietnam War, and current international relations.
John Price Durbin was an American Methodist clergyman and educator who served as Chaplain of the United States Senate from 1831 to 1832 and president of Dickinson College from 1833 to 1844.
John Pye-Smith was a Congregational minister, theologian and tutor, associated with reconciling geological sciences with the Bible, repealing the Corn Laws and abolishing slavery. He was the author of many learned works.
John Quincy Adams was an American politician, diplomat, lawyer, and diarist who served as the sixth president of the United States, from 1825 to 1829. He previously served as the eighth United States Secretary of State from 1817 to 1825. During his long diplomatic and political career, Adams served as an ambassador and also as a member of the United States Congress representing Massachusetts in both chambers. He was the eldest son of John Adams, who served as the second president of the United States from 1797 to 1801, and First Lady Abigail Adams. Initially a Federalist like his father, he won election to the presidency as a member of the Democratic-Republican Party, and later, in the mid-1830s, became affiliated with the Whig Party.