Albert-Édouard Janssen died in 1966.
Henk Janssen died in 1969.
Benno Janssen died in 1964.
Georges Janssen died in 1941.
Peter Janssen died in 1908.
Herbert Janssen died in 1965.
Johannes Janssen died in 1891.
Karl Janssen died in 1927.
Paul Janssen died in 2003.
zacharias janssen died in 1638
Frances Janssen died on 2008-11-27.
Walter Janssen died on 1976-01-01.
Arnold Janssen died on 1909-01-15.