John F. Kennedy | Pope John Paul II | Elton John | John | John Lennon | John Wayne | John McCain | John Kerry | John Cage | Olivia Newton-John | John Williams | John Peel | John Adams | John Steinbeck | John Travolta | John Milton | John Zorn | John Marshall | John Howard | John Singer Sargent | John Ruskin | John Updike | John Maynard Keynes | John Coltrane | John Cleese | St. John's | John Waters | John Lee Hooker | John Huston | John Ford |
Other great contributors to medieval logic include Albert of Saxony, John Buridan, John Wyclif, Paul of Venice, Peter of Spain, Richard Kilvington, Walter Burley, William Heytesbury, and William of Ockham.