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)
Sammy Davis Sr. they performed together as the Will Mastin Trio. Sammy Jr. once stated, "When I was nine I told my father, 'I can outdance you'. 'Oh yeah? What makes you think that?' he asked. 'Cause you taught me everything I know'. 'Yeah, but I didn't teach you everything "I" know.'" Sammy Davis Sr. began dancing early in life, and as a young man joined Will Mastin to form a dancing troupe. Soon Sammy Jr. joined the act and they became known as the Will Mastin Trio. The three appeared in the 1956 Broadway musical "Mr. Wonderful". Davis also appeared in two