TYB
3 Bomb Shelters and a SCIF… JFK also had a property in West Palm Beach with a Bomb shelter.
"When John F. Kennedy became commander-in-chief in 1961, the military built him a secret nuclear shelter and command post on Peanut Island, a 79-acre expanse at the mouth of the Lake Worth Inlet in Palm Beach County.
Until 2015, the Kennedy family owned an oceanfront estate less than two miles from Mar-a-Lago, where JFK vacationed. Designed in 1923 by noted architect Addison Mizner, it was bought by Kennedy patriarch Joseph P. Kennedy in 1933."
https://www.newsmax.com/US/mar-a-lago-bomb-shelters-cold-war-donald-trump/2017/04/12/id/784010/