This primary source comes from the Records of the American Battle Monuments Commission.
National Archives Identifier:
6003745Full Citation: Photograph 117-MP-2-39; The East Coast Memorial to the Missing, Battery Park, New York City; Photographs of World War I and World War II American Military Cemeteries and Memorials in Europe, 1924 - 1932; Records of the American Battle Monuments Commission, Record Group 117; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/east-coast-memorial-missing, April 26, 2024]