Question: Richard George Van Gelder, was a prominent mammalogist who served as the Curator of Mammalogy for which organization, located on the Upper West Side of Manhattan, New York City, is one of the largest museums in the world, abbreviated as AMNH?
Sentence (from "American Museum of Natural History"): The museum has a full-time scientific staff of 225, sponsors over 120 special field expeditions each year, and averages about five million visits annually.
Relevant evidence: No