Complex sentence: He was a friend of the fellow engraver, Francis Place, and enjoyed an informal salon of intellectuals at York, including Dr. Martin Lister, Ralph Thoresby, and Henry Gyles the glass painter.
Split into simpler sentences: He was a friend of the fellow engraver, Francis Place, and enjoyed an informal salon of intellectuals at York. These included Dr. Martin Lister, Ralph Thoresby, and Henry Gyles the glass painter.