Hugo Koch was born in 1870.
Ehrhardt Koch died in 1954.
Adrienne Koch died in 1971.
Valdemar Koch died in 1902.
Franz Koch died in 1959.
Ernő Koch died in 1970.
Gaetano Koch died in 1910.
William A. Koch died in 2001.
Berthold Koch died in 1988.
Kenneth Koch died in 2002.
Bodil Koch died in 1972.
Barton Koch died in 1964.