Complex sentence: Born J. Clayton "Clay" Conroy in Jersey City, New Jersey in 1918, he attended the Newark School of Fine and Industrial Arts, and later the New England Conservatory of Music, where his instrument was the trombone.
Split into simpler sentences: Born J. Clayton "Clay" Conroy in Jersey City, New Jersey in 1918. As a young man, he attended the Newark School of Fine and Industrial Arts, and later the New England Conservatory of Music, where his instrument was the trombone.