Question: John Watts is a sculpture installed in the church cemetery established in what year?
Sentence (from "Trinity Church Cemetery"): In 1842, the church, running out of space in its churchyard, established Trinity Church Cemetery and Mausoleum in Upper Manhattan between Broadway and Riverside Drive, at the Chapel of the Intercession (now The Church of the Intercession, New York), formerly the location of John James Audubon's estate.
Relevant evidence: Yes