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 Rat Rats are various medium-sized, long-tailed rodents. All species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus "Rattus". Other rat genera include "Neotoma" (pack rats), "Bandicota" (bandicoot rats) and "Dipodomys" (kangaroo rats). Rats are typically distinguished from mice by their size. Generally, when someone discovers a large muroid rodent, its common name includes the term "rat", while if it is smaller, its name includes the term "mouse". The common terms "rat" and "mouse" are not taxonomically specific, so "rat" is not a scientific term, otherwise all rats would belong to the genus