Complex sentence: The school is named after James J. Ferris, who was a civil engineer and politician in Jersey City best known for supervising the construction of the Pennsylvania Railroad Harsimus Stem Embankment and the Powerhouse's concrete foundation.
Split into simpler sentences: The school is named after James J. Ferris, who was a civil engineer and politician in Jersey City. He is known for supervising the construction of the Pennsylvania Railroad Harsimus Stem Embankment and the Powerhouse's concrete foundation.