Wilson, Martha G. «New Jersey Guide; STATE OPERA OPENER»Архивная копия от 29 января 2018 на Wayback Machine, The New York Times, January 24, 1982. Accessed February 18, 2011. «Whittredge, who was born in Ohio in 1820, was a self-taught painter who came under the influence of the Hudson River School. In 1849, he traveled to Europe, where he studied and painted for 10 years. He moved to Summit in 1880, and lived there until his death in 1910.»
Wilson, Martha G. «New Jersey Guide; STATE OPERA OPENER»Архивная копия от 29 января 2018 на Wayback Machine, The New York Times, January 24, 1982. Accessed February 18, 2011. «Whittredge, who was born in Ohio in 1820, was a self-taught painter who came under the influence of the Hudson River School. In 1849, he traveled to Europe, where he studied and painted for 10 years. He moved to Summit in 1880, and lived there until his death in 1910.»