Kellersberger's Map

Kellersberger's Map is a plat map created in 1854 of Rancho San Antonio on the northeastern shore lands, the Contra Costa of San Francisco Bay, in present day Alameda County, California. The area surveyed today comprises the entire extent of the cities of Berkeley and Albany, and the northern part of Oakland, including its downtown and waterfront.

The map can be seen here: 1854 Map of the Vicente & Domingo Peralta Ranchos, Lithographed by Britton & Rey, courtesy of Barry Lawrence Ruderman Antique Maps Inc.

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 acre
 * 58 – Peter Mathews, 75 acre
 * 60 – Jean Noel, 107.63 acre
 * 62 – Juan Ysunza (Chile), 89.25 acre
 * 63 – Rosario Sisterna (Chile), 59.60 acre
 * 64 – Michael Curtis (Ireland), 154 acre
 * 65 – Francois Pioche (France via Chile), 48.88 acre
 * 67 – Francois Pioche, 157.20 acre
 * 68 – Francis K. Shattuck, 160 acre
 * 69 – George M. Blake, 160 acre
 * 70 – James Leonard (Ireland), 160 acre
 * 71 – William Hillegass, 160 acre
 * 78 – Joseph Irving, 160 acre
 * 89 – Jacob Irving, 155 acre
 * City of Oakland, acreage unspecified
 * Vicente Peralta Reserve, 7001 acre
 * Domingo Peralta Reserve, acreage unspecified