Simplify the following text for a Grade 9 native English-speaking person.
Original: Johnny Saxton ( July 4 , 1930 - October 4 , 2008 ) was an American professional boxer in the welterweight ( 147lb ) division .
Simplified: Johnny Saxton ( born July 4 , 1930 in Newark , NJ ) was an American boxer who won the welterweight championship .