Dr. John Armstrong (1709–1779) was a physician, poet, and satirist. He was born at Castleton Manse, the son of Robert Armstrong, minister of Castleton, Roxburghshire, Scotland John studied medicine and gained his MD at the renowned University of Edinburgh before establishing a successful medical practice in London.
John "Archie" Armstrong Chaloner was an American writer and activist, known for his catch phrase "Who's looney now?".
John Asgill was an eccentric English writer and politician.
John Ash was an expatriate British poet and writer.
John Askham (1825–1894) was an English working class poet who published five volumes of poetry.
John Aubrey was an English antiquary, natural philosopher and writer. He is perhaps best known as the author of the Brief Lives, his collection of short biographical pieces. He was a pioneer archaeologist, who recorded numerous megalithic and other field monuments in southern England, and who is particularly noted for his systematic examination of the Avebury henge monument. The Aubrey holes at Stonehenge are named after him, although there is considerable doubt as to whether the holes that he observed are those that currently bear the name. He was also a pioneer folklorist, collecting together a miscellany of material on customs, traditions and beliefs under the title "Remaines of Gentilisme and Judaisme". He set out to compile county histories of both Wiltshire and Surrey, although both projects remained unfinished. His "Interpretation of Villare Anglicanum" was the first attempt to compile a full-length study of English place-names. He had wider interests in applied mathematics and astronomy, and was friendly with many of the greatest scientists of the day.
The Rev. John Augustine Zahm, CSC was a Holy Cross priest, author, scientist, and explorer of South America. He was born at New Lexington, Ohio, and died in Munich, Germany.
John Ayliffe, LL.D. (1676–1732) was an English jurist, expelled from the University of Oxford in a high-profile controversy.
John Bayard Anderson was an American lawyer and politician who served in the United States House of Representatives, representing Illinois's 16th congressional district from 1961 to 1981. A member of the Republican Party, he also served as the Chair of the House Republican Conference from 1969 until 1979. In 1980, he ran an independent campaign for president, receiving 6.6% of the popular vote.
