This document summarizes the transition of the Brooklyn Dodgers and New York Giants baseball franchises from the East Coast to the West Coast in the late 1950s. Population shifts and declining attendance prompted both teams' owners, Walter O'Malley of the Dodgers and Horace Stoneham of the Giants, to consider relocating. O'Malley was more determined than Stoneham to move, and convinced Stoneham to join him in moving their teams to Los Angeles and San Francisco, respectively. This left devastated fans in Brooklyn and New York City, as the teams were icons of their cities and communities. The moves highlighted the business and financial priorities of team owners over community ties.