Rat Pack relations), Swifty Lazar (recording secretary and treasurer), Nathaniel Benchley (historian), David Niven, Katharine Hepburn, Spencer Tracy, George Cukor, Cary Grant, Rex Harrison, and Jimmy Van Heusen. In his autobiography "The Moon's a Balloon", David Niven confirms that the Rat Pack originally included him but neither Sammy Davis, Jr. nor Dean Martin. The 1960s version of the group included Frank Sinatra, Dean Martin, Sammy Davis Jr., Peter Lawford, and Joey Bishop. Marilyn Monroe, Angie Dickinson, Juliet Prowse, Buddy Greco, and Shirley MacLaine were often referred to as the "Rat Pack Mascots". The post-Bogart version of the group (Bogart died in 1957)
Rat Pack Vegas, during which members sometimes referred to the group as "the Jack Pack". Rat Pack members played a role in campaigning for Kennedy and the Democrats, appearing at the July 1960 Democratic National Convention in Los Angeles. Lawford had asked Sinatra if he would have Kennedy as a guest at his Palm Springs house in March 1962, and Sinatra went to great lengths (including the construction of a helipad) to accommodate the President. When Attorney General Robert F. Kennedy advised his brother to sever his ties to Sinatra because of the entertainer's association with Mafia figures such as Sam Giancana,