The grant extended to the lands of present-day Fremont including the former towns, now districts of Centerville, Irvington and Mission San Jose.
[1] In 1850 Elias L. Beard, and John M. Horner acquired Alvarado's interest in the Rancho and began large scale farming of vegetables, potatoes and grain for the gold camps.
In 1853, Beard, and Horner declared bankruptcy, due to a glut of potatoes on the market and a financial panic and the Ex Mission lands were acquired by their creditors.
[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.
The land claim was filed March 22d, 1852, confirmed by the Commission December 18, 1855, but rejected by the Northern District Court (case 407ND) on June 30, 1859.