Zacharias Janssen, credited with making the first compound microscope, was born in The Hague, Netherlands in 1585. Janssen was a spectacle maker by trade.
Edward H. Janssen was born in 1815.
Frauke Janssen was born in 1932.
Jill Janssen was born in 1945.
Judith Janssen was born in 1969.
Johannes Janssen was born in 1829.
Benno Janssen was born in 1874.
Karl Janssen was born in 1855.
Daniel Janssen was born in 1936.
Peter Janssen was born in 1844.
Henk Janssen was born in 1890.
Gerard Janssen was born in 1946.
Ray Janssen was born in 1937.