In 1846, during American conquest of California, John Brown, nicknamed "Juan Flaco," rode from Los Angeles to San Francisco in four days to warn Commodore Stockton of the siege of Los Angeles. As a result, troops were sent and the city secured. This "Paul Revere of California," who lived in Stockton from 1851-59 and is buried in the former Citizen's Cemetery near this site.

California Registered Historical Landmark No. 513
Plaque placed by the State Department of Parks and Recreation in cooperation with local civic and historical organization, September 13, 1969.