Kellersberger's Map

Kellersberger's Map is a plat map created in 1856 of Rancho San Antonio on the northeastern shore lands, the Contra Costa of San Francisco Bay, in present day Alameda County, California.

Kellersberger's Map was created by surveyor Julius Kellersberger in order to facilitate the subdivision of a portion of the Mexican land grant lands of the Alta California era Rancho San Antonio following the Mexican-American War and U.S. statehood.

Kellersberger had previously surveyed a map of the original claimed extent of the City of Oakland.

List of plots

The following is a partial list of the subdivision plots on Kellersberger's Map together with the names of their original claimants:

57 - Peter Mathews (Ireland), 53.75 acres (217,500 m²)
58 - Peter Mathews, 75 acres (300,000 m²)
60 - Jean Noel, 107.63 acres (0.4356 km²)
62 - Juan Ysunza (Chile), 89.25 acres (361,200 m²)
63 - Rosario Sisterna (Chile), 59.60 acres (241,200 m²)
64 - Michael Curtis (Ireland), 154 acres (0.62 km²)
65 - Francois Pioche (France via Chile), 48.88 acres (197,800 m²)
67 - Francois Pioche, 157.20 acres (0.6362 km²)
68 - Francis K. Shattuck, 160 acres (0.65 km²)
69 - George M. Blake, 160 acres (0.65 km²)
70 - James Leonard (Ireland), 160 acres (0.65 km²)
71 - William Hillegass, 160 acres (0.65 km²)
78 - Joseph Irving, 160 acres (0.65 km²)
89 - Jacob Irving, 155 acres (0.63 km²)

Map of the Ranchos of Vincente and Domingo Peralta Containing 16,970.68 Acres, Surveyed by Julius Kellersberger, originally filed January 21, 1857, Recorder's Office of Alameda County, re-filed June 22, 1870.