John Adams - martyr - was born in 1543.
John Felton - martyr - died in 1570.
John Kemble - martyr - died in 1679.
John Britton - martyr - died in 1598.
John Nelson - martyr - died in 1578.
John Finch - martyr - died on 1584-04-20.
John Almond - martyr - died on 1612-12-05.
He didn't.
John T. Adams died in 1939.
John Clayton Adams died in 1906.
John Adams Whipple died in 1891.
John Adams Jackson died in 1879.