Complex sentence: John Douglas Woodward (12 July 1846--1924) was an American landscape artist and illustrator described by Joseph Pennell as one of the country's "best-known painters and illustrators".
Split into simpler sentences: John Douglas Woodward (12 July 1846--1924), usually simply J.D. or Douglas Woodward, was an American landscape artist and illustrator. He was one of the country's "best-known painters and illustrators".