In 1959, the City of Chicago and the Chicago Park District entered into an agreement whereby all of the City-owned lakefronts and pools would be transferred to the Chicago Park District. During the consolidation efforts, several far-sighted lifeguard supervisors, including George V. Iverson, Tom O'Brien and Joseph Mansfield, began to lay the foundation of what would become the Chicago Park District Lifeguard Service, successfully merging the City of Chicago Lifeguard Service with the Chicago Park District Lifeguard Patrol. Further contributions to the Lifeguard Service were made by Sam Leone who founded the first ever Junior Lifeguard program which was adopted by the United States Lifesaving Association.