John Howard Van Amringe (1836-1915), the American educator & mathematician
Former Australian Prime Minister, John Howard, has not yet died.
John Howard Northrop died on May 27, 1987 at the age of 95.
John van Melle died on November 8, 1953 at the age of 66.
John Hasbrouck van Vleck died on October 27, 1980 at the age of 81.