William Frederick Koch died in 1967. The exact date of his death is unknown.
William A. Koch was born in 1915.
William Frederick Koch was born in 1885.
No
Max Koch died in 1925.
Franz Koch died in 1959.
Des Koch died in 1991.
Rudolf Koch died in 1934.
Ehrhardt Koch died in 1954.
John Koch died in 1978.
Kenneth Koch died in 2002.
Bodil Koch died in 1972.