Johann Jahn died in 1816.
Johann Natterer died in 1843.
Johann von Appel was born in 1826.
Johann Heinrich Merck died in 1791.
Johann Voldemar Jannsen died in 1890.
Johann Philipp Palm died in 1806.
Johann Jahn was born in 1750.
Jan Jahn died in 1802.
Otto Jahn died in 1869.
Lilli Jahn died in 1944.
Alfred Jahn died in 1999.
Rudolf Jahn died in 1990.
Wilhelm Jahn died in 1900.
Gunnar Jahn died in 1971.
Uwe Jahn has written: 'Die \\'
Gunter Jahn died on 1992-04-12.
Alfredo Jahn died on 1940-07-12.
Gerhard Jahn died on 1998-10-20.