John Milton was an English poet and intellectual. His 1667 epic poem Paradise Lost, written in blank verse and including over ten chapters, was written in a time of immense religious flux and political upheaval. It addressed the fall of man, including the temptation of Adam and Eve by the fallen angel Satan and God's expulsion of them from the Garden of Eden. Paradise Lost elevated Milton's reputation as one of history's greatest poets. He also served as a civil servant for the Commonwealth of England under its Council of State and later under Oliver Cromwell.

John Mitchell Kemble, English scholar and historian, was the eldest son of Charles Kemble the actor and Maria Theresa Kemble. He is known for his major contribution to the history of the Anglo-Saxons and philology of the Old English language, including one of the first translations of Beowulf.

John Morley, 1st Viscount Morley of Blackburn, was a British Liberal statesman, writer and newspaper editor.

John Muir, also known as "John of the Mountains" and "Father of the National Parks", was a Scottish-born American naturalist, author, environmental philosopher, botanist, zoologist, glaciologist, and early advocate for the preservation of wilderness in the United States.

John N. Reynolds is a British investor and financial author who wrote 'Ethics in Investments Banking' and 'Sharing Profits'.

John Neville Keynes was a British economist and father of John Maynard Keynes.

John Newton was an English evangelical Anglican cleric and slavery abolitionist. He had previously been a captain of slave ships and an investor in the slave trade. He served as a sailor in the Royal Navy and was himself enslaved for a time in West Africa. He is noted for being author of the hymns Amazing Grace and Glorious Things of Thee Are Spoken.

John Ogilby was a Scottish translator, impresario and cartographer. Best known for publishing the first detailed British road atlas, he was also a successful translator, noted for publishing his work in handsome illustrated editions. He also established Ireland's first theatre on Dublin's Werburgh Street.

Pearl Mary Teresa Richards was an Anglo-American novelist and dramatist who wrote under the pen-name of John Oliver Hobbes. Though her work fell out of print in the twentieth-century, her first book Some Emotions and a Moral was a sensation in its day, selling eighty-thousand copies in only a few weeks.

John Owen was a Welsh epigrammatist, most known for his Latin epigrams, collected in his Epigrammata.