Brooklyn first formed from the amalgamation in 1856 of two settlements, the sites of which are both now within the city limits of Oakland: San Antonio and Clinton. The name Brooklyn commemorated the ship that had brought Mormon settlers to California in 1846. In 1870, Brooklyn absorbed the nearby town of Lynn, which housed a footwear industry, and incorporated as a city.
In 1872, voters approved their city's annexation by Oakland. Afterward, when the Southern Pacific Railroad took over the rail line in 1883, the Brooklyn station name was changed to East Oakland.
Looking at historical maps, Brooklyn is shown as a fairly large area, lying adjacent and to the south of Lake Merritt and the Piedmont tract, and adjacent and to the north of Alameda, the San Leandro Creek, and the town of San Leandro. Today this is East Oakland.
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 674. ISBN 1-884995-14-4.
- U.S. Geological Survey Geographic Names Information System: East Oakland Station (historical)
- Hartmann, Leonard H. "California Post Offices and Counties". Retrieved October 14, 2020.