Errata
Every correction the accuracy audit or a reader has established is listed here, with what the register said, what the source says, and the source that settled it. IMPORTANT: these corrections are DISCLOSED here but are NOT yet applied to the downloadable dataset. data/ranchos-register.csv and .json remain byte-identical to the Zenodo v1.0 deposit so that the published DOI keeps resolving to exactly the data that was deposited; the corrections will be folded in when version 1.1 is cut. Until then, a row listed below still carries its erroneous value in the table and in the download, and this page is the authority on what that value should be. Nothing is corrected silently.
30 corrections recorded.
| Grant | Field | Was | Now | Settled by | Corrected |
|---|---|---|---|---|---|
| rancho-atascadero | grant year | 1839 | 1842 | Bancroft land case file SD 113 | 2026-09-02 |
| rancho-cosumnes | grantee | Salvador Oslo | William E. P. Hartnell | Bancroft land case file ND 362 | 2026-09-02 |
| rancho-cruces | grantee | Vicente Cordero | Miguel Cordero | Bancroft land case file ND 430 | 2026-09-02 |
| rancho-cuyama-1 | grantee | María Antonia de la Guerra y Lataillade | Cesario Lataillade | Bancroft land case file SD 104 | 2026-09-02 |
| rancho-laguna-merced | grantee | Josefa de Haro | Jose Antonio Galindo | Bancroft land case file ND 380 | 2026-09-02 |
| rancho-mallacomes-moristul-plan-agua-caliente | grant year | 1841 | 1843 | Bancroft land case file ND 161 | 2026-09-02 |
| rancho-nicasio-2 | grantee | Henry W. Hallack, James Black, and Benjamin R. Buckelew | Pablo de la Guerra and Juan B. R. Cooper | Bancroft land case file ND 392 | 2026-09-02 |
| rancho-penasquitos | grant year | 1835 | 1823 (original grant; 1834 for the addition) | Bancroft land case file SD 142 | 2026-09-02 |
| rancho-penasquitos | granting governor | Castro | Luis Antonio Arguello | Bancroft land case file SD 142 | 2026-09-02 |
| rancho-posas | grantee | José de la Guerra y Noriega | Jose Carrillo | Bancroft land case file SD 117 | 2026-09-02 |
| rancho-puerto | grantee | Samuel G. Reed and Ruben S. Wade | Mariano and Pedro Hernandez | Bancroft land case file ND 330 | 2026-09-02 |
| rancho-quito | grantee | Manuel Alviso | Jose Z. Fernandez and Jose Noriega | Bancroft land case file ND 226 | 2026-09-02 |
| rancho-rincon-esteros-1 | grantee | Rafael Alviso | Ygnacio (Ignacio) Alviso | Bancroft land case file ND 204 | 2026-09-02 |
| rancho-salinas | grant year | 1835 | 1836 | Bancroft land case file SD 158 | 2026-09-02 |
| rancho-san-antonio | grantee | Encarnación Mesa | Prado Mesa (Alferez Prado Meza) | Bancroft land case file ND 275 | 2026-09-02 |
| rancho-san-jacinto-viejo | granting governor | Alvarado | Manuel Jimeno (interim governor) | Bancroft land case file SD 233 | 2026-09-02 |
| rancho-san-luis-conzaga | grant year | 1841 | 1843 | Bancroft land case file ND 062 | 2026-09-02 |
| rancho-san-luis-conzaga | grantee | Francisco Rivera | Jose Maria Mejia and Juan Perez Pacheco | Bancroft land case file ND 062 | 2026-09-02 |
| rancho-san-pascual | grant year | 1834 | 1838 | Bancroft land case file SD 248 | 2026-09-02 |
| rancho-san-pascual | granting governor | Figueroa | Juan B. Alvarado | Bancroft land case file SD 248 | 2026-09-02 |
| rancho-santa-rosa-2 | grant year | 1845 | 1846 | Bancroft land case file SD 148 | 2026-09-02 |
| rancho-soulajule-2 | grantee | Joshua S. Brackett | Jose Ramon Mesa | Bancroft land case file ND 329 | 2026-09-02 |
| rancho-soulajule-3 | grantee | Pedro J. Vasquez | Jose Ramon Mesa | Bancroft land case file ND 331 | 2026-09-02 |
| rancho-soulejule | grantee | Martin F. Gormley | Jose Ramon Mesa | Bancroft land case file ND 334 | 2026-09-02 |
| rancho-vega-rio-pajaro | grant year | 1821 | 1820 | Bancroft land case file SD 245 | 2026-09-02 |
| rancho-vega-rio-pajaro | grantee | Juan M. Anzar | Antonio Maria Castro | Bancroft land case file SD 245 | 2026-09-02 |
| rancho-zanjones | granting governor | Alvarado | Manuel Jimeno Casarin (acting governor) | Bancroft land case file SD 108 | 2026-09-02 |
| rancho-zanjones | grantee | Mariano Malarin | Gabriel de la Torre | Bancroft land case file SD 108 | 2026-09-02 |
| u-23 | adjudication outcome | Confirmed | Rejected (the District Court reversed the confirmation, 6 March 1862) | Bancroft land case file SD 385 | 2026-09-02 |
| u-92 | grant year | 1778 | 1777 | Bancroft land case file N.D. 419 | 2026-09-02 |
How corrections are found
Two ways. A blind sample of 100 of the 672 records was drawn on 1 September 2026, committed to the public repository with its checksum before any of it was checked, and was then verified field by field against the land case files; that pass is complete and its results are in section 10 of the Sources and Method page. And readers write in. If a grant here contradicts a document you hold, the document wins: aodhancoyne@gmail.com.
What counts as an erratum
A value that was published and is wrong. A field left blank because no source states it is not an error, and is not listed here. Where the register and a source disagree about a grant, the land case file is the authority.