Alameda was once a peninsula of grassy fields and sandy beaches, separated from Oakland by a snaking estuary. A tidal canal made Alameda an island in 1902 and its waterfront became a major shipping port. Park Street's bay-windowed commercial buildings looked out on a prosperous city of streetcars and comfortable homes. Between the two world wars, Alameda's Neptune Beach resort and amusement park became the "Coney Island of the West," eventually boasting...