John Barrett - conservationist - died in 1999.
John Barrett - Irish soldier - died in 1693.
John Barrett - diplomat - died on 1938-10-17.
John Patrick Barrett died on 1946-11-02.
John Cridlan Barrett died on 1977-03-07.
John Barrett - Australian politician - died on 1928-05-19.
John Barrett - Royal Navy officer - died in 1810.
Peter McKenzie - conservationist - died in 2012.
Kevin Smith - conservationist - died in 2005.
Edward Buxton - conservationist - died in 1924.
John Muir
John C. A. Barrett was born in 1943.
John F. Barrett was born in 1949.