This primary source comes from the Records of the Office of the Chief of Engineers.
National Archives Identifier:
7419782Full Citation: Family Fallout Shelter; 1958; Civil Defense Photographs, 1951 - 1961, 1951 - 1961; Construction Project Photographs , 1927 - 1981; Records of the Office of the Chief of Engineers, Record Group 77; National Archives at Boston (RE-BO), Waltham, MA. [Online Version, https://www.docsteach.org/documents/document/family-fallout-shelter, May 1, 2024]