"Alva E. Belmont Residence". New York City Chapter of the American Guild of Organists. Archived from the original on February 3, 2012. Retrieved February 11, 2012.
web.archive.org
"Alva E. Belmont Residence". New York City Chapter of the American Guild of Organists. Archived from the original on February 3, 2012. Retrieved February 11, 2012.