[2] Micheltorena granted eleven square leagues (the maximum allowable under Mexican law) to Jimeno.
Thomas O. Larkin (1802 - 1858), consul of the United States at Monterey, was not a Mexican citizen, and could not obtain a direct land grant.
But in 1847, with California in the possession of General Kearney, Larkin, in association with John S. Missroon, a naval lieutenant, bought Manuel Jimeno's eleven-league grant.
[3] With the cession of California to the United States following the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.
As required by the Land Act of 1851, a claim for Rancho Jimeno was filed with the Public Land Commission in 1852,[4][5] confirmed by the US Supreme Court in 1855,[6] and the grant was patented to Thomas O. Larkin and John S. Missroon in 1862.