Corporal
Antonio Maria Lugo, after seventeen years of military service, received his discharge and was granted the Spanish concession Rancho San Antonio in 1810. The grant was confirmed in 1838 to Antonio Maria Lugo by Mexican Governor
Juan B. Alvarado. On Rancho San Antonio he built
Casa de Rancho San Antonio the oldest home in
Los Angeles County, California. , which took place on the lands of Rancho San Antonio, was the last battle fought in the U.S.
Conquest of California. 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 was filed with the
Public Land Commission in 1852, and the grant was
patented to Antonio Lugo in 1866. In 1855 Antonio Maria Lugo, partitioned the Rancho—reserving a homestead for himself—among his sons, José Maria, Felipe, Jose del Carmen, Vicente and José Antonio, and his daughters, Vicenta Perez, Maria Antonia Yorba, and
Merced Foster. In 1860 Merced Foster and Vicente Lugo sold their respective portions to parties who immediately resorted to subdivision and sale in small lots. The first deed is from Isaac Heiman to David Ward, dated June 21, 1865; followed by other sales in 1865 and 1866. In 1908
Michael Cudahy acquired the remaining 2,800 acre (11 km2) Rancho San Antonio. He subdivided the ranch and sold it as one acre (4,000 m2) lots. This area was
incorporated in 1960 as the City of
Cudahy. ==Historic sites of the Rancho==