Cheaper by the Dozen

Cheaper by the Dozen is a biographical book written by Frank Bunker Gilbreth, Jr. and Ernestine Gilbreth Carey that tells the story of time and motion study and efficiency experts Frank Bunker Gilbreth and Lillian Moller Gilbreth, and their twelve children. The book focuses on the many years the family resided in Montclair, New Jersey. It was adapted to film by Twentieth Century Fox in 1950. The title comes from one of Frank Sr.'s favorite jokes: it often happened that when he and his family were out driving and stopped at a red light, a pedestrian would ask, "Hey, Mister! How come you got so many kids?" Gilbreth would pretend to ponder the question carefully, and then, just as the light turned green, would say, "Well, they come cheaper...