Kensico Cemetery, located in Valhalla, Westchester County, New York was founded in 1889, when many New York City cemeteries were becoming full, and rural cemeteries were being created near the railroads that served the city. Initially 250 acres (1.0 km2), it was expanded to 600 acres (2.4 km2) in 1905, but reduced to 461 acres (1.87 km2) in 1912, when a portion was sold to the neighboring Gate of Heaven Cemetery.

Valhalla is a hamlet and census-designated place (CDP) within the town of Mount Pleasant, in Westchester County, New York, United States, in the New York City metropolitan area. Its population was 3,162 at the 2010 U.S. Census. The name was inspired by a fan of the composer Richard Wagner, and the hamlet is known both as the home of the primary hospital campus of Westchester Medical Center and New York Medical College and as the burial place of numerous noted people. Valhalla is the realm of the gods in Norse mythology.