Here is a random selection of famous first names beginning with J.
Jack Kerouac
[born Jean Louis Kerouac], (1922-69), American novelist and poet. He wrote a number of books including "On the Road", "Mexico City Blues" and "The Subterraneans".James Chadwick
[Sir], (1891 - 1974) English physicist. He discovered the neutron in 1932, and in 1935 was awarded the Nobel prize for physics.James Byron Dean
(1931 - 55), American movie actor. His portrayal of troubled, disaffected adolescence in 'East of Eden' and 'Rebel Without a Cause' made him a cult figure. He died in a car crash.John Milton
(1608 - 74), English poet. His most famous prose work is the tract "Aeropagitica". The poem "Paradise Lost" is considered to be his masterpiece.John Adams
(1735-1826), succeeded George Washington as president of the U.S.A.