Is J. Dead or Still Alive? J. Birthday and Age


How Old Is J.? J. Birthday

J. was born in 1946 and is 78 years old now.

Birthday: 1946
How Old - Age: 78

J. Death Fact Check

J. is alive and kicking and is currently 78 years old.
Please ignore rumors and hoaxes.
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J. - Biography

Johannes "Hans" van Leeuwen (born 1946 in Gouda) is a Dutch-American professor of Civil, Construction and Environmental Engineering at Iowa State University and an entrepreneur.