When did Frank Sinatra's career begin to lag?  Frank Sinatra lived in a walled compound with some of his best friends.  Who were they?
Tamarisk Country Club:  Frank Sinatra lived in a walled compound on the club's 17th fairway, and his Rat Pack friends, Sammy Davis Jr., Pat Henry, and Jilly Rizzo built homes around the corner from Sinatra. Frank Sinatra:  Sinatra's professional career had stalled by the early 1950s, and he turned to Las Vegas, where he became one of its best known performers as part of the Rat Pack.
i don't know