Obituary published in the Washington Post.
Not reported in the obituary, however, is the school of thought that such fallout shelters would simply have served as mass mortuaries. For example, under the firestorms associated with hydrogen bomb blasts in urban centers, all oxygen would have been sucked from the shelters -- occupants would have asphyxiated.
Even if that were not to occur, the air supply alone in a fallout shelter would have come from the outside -- brining in with it radioactive contamination.
The only cure for nuclear war is prevention.