 After World War I, Arcadia's population grew and local businesses included many chicken ranches and other agricultural activities.During the 1920s and 1930s, Arcadia began its transition to the residential city that it is today, as small farms and chicken ranches gave way to homes and numerous civic improvements, including a city library and a city hall.Scenes of many of Arcadia's interesting older sites can be viewed in a series of historic watercolors painted by local artists Edna Lenz and Justine Wishek.