William Roethgen (1849-1923) was as a professional landcape painter who was born in Cologne, Germany on September 21, 1849. He immigrated to the United States in 1864. He lived in Hoboken and Jersey City (NJ) and later (from 1900) in the 12th ward of upper Manhattan [above 86th Street], New York City. He died on December 26, 1923.
He is listed in the following publication:
Early New Jersey Artists, 18th and 19th Centuries; William H Gerdts (editor), Newark Museum, (Newark, NJ), March 1957. -- pg.27