John Prince (171-1836) was a long-time minister at Salem's First Church.
He was also an inventor of an early air-pump, an instrument that could produce the vacuum
needed to study the behavior of gases and liquids. He published his work in the
journal of the American Academy of Arts and Sciences, which he was an early member.
"Inventors have thrived on North Shore" Salem News, Sept. 5, 2011, p. 5